- To reach base by hitting a ball between infielders. "McCann laced it through the shift on the right side of the infield."
- A pitch delivered with nothing on it. A nod to the legend of Lady Godiva running naked on horseback.
- An acronym for League Average Inning Muncher. A LAIM is generally a starting pitcher who can provide around 200 innings over the course of a season with an ERA (Earned Run Average) near the league average. A LAIM is counted on to consume innings, keeping his team in the game but not necessarily shutting down the opposition. The term was coined by baseball blogger Travis Nelson, but is used by other writers as well.
- A slang term for a grand slam home run. It is a takeoff from the term "grand salami" which some people use to refer to a grand slam.
- A batting performance with a high number of base hits, particularly line drives. Also, the nickname of Boston Red Sox second baseman Dustin Pedroia.
- The seventh, eighth and ninth innings of a regulation nine-inning game.
- A game in which one team gets a large lead, perhaps early in the game, and it appears the other team has no chance at all of catching up. With nothing to worry about, the manager and team can relax. An easy win; a romp; a blowout.
- To hit a long fly ball, as if launching a rocket. "Orso, who recently signed with Alabama Southern to play college baseball next season, launched several rocket shots and by far hit the furthest home runs of anyone in the competition ..."
- It is also said that a pitcher "launches" the ball when he throws a wild pitch that gets away from the catcher, and that a fielder "launches" the ball when he throws it wildly out-of-reach of the intended receiver.
- The angle, with respect to the ground at home plate, at which a batted ball leaves the bat.
- A term for a ballpark in which many home runs are hit.
- A (rare) 1-2-3 double play ("... an a one, an a two, an a ...").
- If a batter decides not to swing at a pitch, especially if he deliberately avoids swinging at certain types of pitches, he may be said to "lay off" a pitch. Pitchers tempt hitters to swing at pitches they cannot hit; batters try to lay off such pitches. "Batters can't seem to lay off his slider, just as his parents can't seem to lay off his carrot cake — they're nearly addicted to it."
- The first batter listed on a team's lineup card (in the 1-hole or the "leadoff spot" on the line-up card). When the announcers read the starting line-up they might say, "Leading off, and playing short-stop, is Sammy Speedyrunner. Batting second, playing second base, Carlos Contacthitter. Batting third, in the pitcher's spot, is designated hitter Burt "Biggie" Brokenleg. Batting clean-up, playing left field, Thor Thunderbat ..."
- The first batter in an inning (who could be in any hole on a team's line-up card). If that batter gets a single, or a home run, or a walk, the announcer would say he has a "leadoff single", a "leadoff home run", or a "leadoff walk" respectively.
- A baserunner is said to be "caught leaning" or "leaning the wrong way" when he is picked off a base while shifting his weight toward the next base.
- Referring to a fielder's glove, a player with good leather is a good defensive player (typically an infielder).
- Flashing the leather means making an outstanding defensive play.
- A leather player refers to a player who is outstanding on defense but only average or even less on offense. Ron Karkovice is one example of a "leather player".
- Although baseball bats are symmetrical in shape, and thus there is no such thing as a left-handed baseball bat (or a right-handed baseball bat), in colloquial language a hitter who bats left-handed may be referred to as a "left-handed bat" or "left-hand bat". Headline: "Giants look to acquire left-handed bat".
- Also "left-hand hitter". A batter who, paradoxically, bats from the right-side of the plate. Typically, an individual who is left-handed in most activities, including throwing a baseball, stands in the right-hand batter's box, the one closest to first base.
- A left-handed relief pitcher specializing in getting one out, often in critical situations. See also LOOGY.
left on base
- A baserunner is said to have been left on base (abbreviated LOB) or stranded when the half-inning ends and he has not scored or been put out. This includes a batter-runner who has hit into a fielder's choice, causing another runner to be put out as the third out. It also includes runners on base at the end of a game, as when the home team scores a winning run in the ninth or a subsequent inning. Thus a batter who hits a single in the home half of the tenth inning in a tied game with the bases loaded drives in one run and leaves three on base (runners who were at first and second, and himself).
- Team LOB totals are commonly reported in a baseball box score. It counts only those left standing on the bases when the third out of each inning occurs. Team LOB is used in "proving" a box score. The number of a team's plate appearances is to equal the sum of that team's runs, that team's LOB, and the opposing team's putouts. In other words, every batter who completes a plate appearance is accounted for as a run scored, putout, or LOB.
- Individual LOB totals are sometimes reported in baseball box scores. This is a more recent statistic that is computed for each player who is at bat at least once in a game and is calculated on how many baserunners were "left on base" when the player was at-bat and caused an out, no matter how many outs there were at the time. Note that "at bat" does not include other plate appearances such as sacrifice bunts or flies made by the batter, third outs caused by pickoffs or caught stealing, or games ended with the winning run scoring on a successful steal, etc. Two common misconceptions of the individual LOB are that the individual LOB is the number of times the player was left on base as a baserunner (this is a "runner's LOB" and is not usually recorded), or that the individual LOB applies only when the at-bat player caused the third out. Note that the total of the individual LOBs for all players on a team will usually exceed the team LOB.
- A related statistic is "left on base in scoring position", which includes only those LOB where the runner was occupying second or third base. Yet another related statistic is "left on base in scoring position with less than two out". The intent of these statistics is to measure the tendency of a team or player to waste opportunities to score.
- To run hard to get safely on base or to advance a base: "Podsednik legged out an infield hit, stole second and scored when Everett legged out a double."
- A letter-high pitch is one that crosses the plate at the height of the letters on the batter's chest. Also see at the letters. Equivalent term: "chest high". "Dietrich fouled off a couple of pitches before Porcello put him away with a letter-high fastball at 94."
- A pitcher who so dominates the hitters that the game is effectively over once he takes the mound — so they can turn out the lights and go home. The pitcher retires the batters in order without allowing a single run. "Putz pitched lights-out baseball once he took over the job for good from Guardado."
- A fastball the pitcher delivers with such velocity that the hitter has no time to respond — it "blew by you." A pun on the song title "Blue Bayou," originally recorded in 1961 by Roy Orbison but popularized through Linda Ronstadt's 1977 cover version.
- Also known as a liner, a line drive is a batted ball that is hit hard in the air and has a low arc. See also rope.
- A line drive may also be said to be "hit on a line".
- A batter may be said to have "lined out" if the liner was caught by a fielder.
- Line drives can be dangerous to baseball players and spectators. For example, on July 22, 2007, Tulsa Drillers first base coach Mike Coolbaugh was killed in a line drive accident at an away game with the Arkansas Travelers. Though the ball hit his neck, his death was the impetus for base coaches to start wearing helmets.
- The batting order, which also lists each player's defensive position. An announcer reading the starting lineup for a game will typically begin something like this: "Batting first, playing second base ..."
- A form kept by each manager listing the starting players and all other players who are on the active roster and available to play in the game. Typically this form will be taped to the wall inside the dugout for the manager and coaches to consult when they need to make substitutions during a game. Before the game starts the manager hands a lineup card to the home plate umpire. This lineup will change throughout the game as starting players are removed and substitutes inserted.
- A strong arm, usually describing a pitcher who has a great deal of velocity on his pitches. "That pitcher has a live arm."
Live Ball Era
- The time since 1919 or 1920 when several rule changes moved teams to adopt offensive strategies that favored power hitting over the inside game that was common in the Dead Ball Era.
live on the corners
- A pitcher who "lives on the corners" throws most of his pitches on the inside or outside edges of home plate. He's not inclined to try to overwhelm the hitter with hard pitches down the center of the plate. Many of his pitches will appear to barely nibble the plate.
lively fastball/life on the ball
- A fastball that seems to be not just fast but also hard to hit because it may have some movement on it or it may appear to speed up as it gets closer to the plate. "'His fastball has got more life to it', Jays catcher Rod Barajas said. 'It's finishing. What I mean by that is the last 10 feet [to home plate], it seems that it picks up speed.' According to Barajas, that has particularly helped Ryan against right-handed hitters. "They end up being late, because that last 10 feet, it seems like it picks up a couple miles per hour," Barajas said.
load the bases
- A succession of plays that results in having runners on all three bases. See also bases loaded or bases full.
- Abbreviation for left on base.
- A pitcher's command is reflected in his ability to locate the ball — to throw it to an intended spot. A pitcher with "good location" not only has command but makes the right choices about where to throw the ball against particular batters.
lock him up
- To sign a player to a long-term contract, thereby keeping him off the free-agent market. "Come on Uncle Drayton, you have to lock this guy up for a few years. He is one of the best in the league and along with Berkman, is the new face of the Astros."
- To throw a pitch that keeps the hitter from making any effective swing. For example, when a left-handed pitcher throws a roundhouse curve or an inside fastball to a left-handed hitter, the hitter may appear to freeze in place. "We had him 0-2. We were trying to go in with a fastball, hopefully lock him up." Also see "freeze the hitter".
- A soft, straight pitch with a lot of arc.
- A home run. A team is said to "win by the long ball" after a walk-off home run or the team hits several home runs to win. Headline: "Phillies Use the Longball To Take Game 1 from the Dodgers".
- Home runs. "He ravaged Pacific Coast League pitching for seven more long ones before being recalled by the Reds later the same month."
- A ball that is hit deep into the outfield (and caught) is a "long out".
- A type of relief pitcher. Long relievers enter early in a game (generally before the 5th inning) when the starting pitcher cannot continue, whether due to ineffective pitching, lack of endurance, rain delay, or injury.
- A foul ball which finishes particularly close to being fair, often where a fair ball would have been a home run. So named as despite the good effort of the hitter, the result is a strike against him if the count before the pitch was less than two strikes.
- A mildly derogatory nickname for a left-handed specialist. An acronym for "Lefty One Out GuY", a left-handed pitcher who may be brought into the game to pitch against just one or two left-handed batters to take extreme advantage of platoon effects. An example is Javier Lopez, who was a key component of the Giants' World Series winning bullpen in the 2010s. Starting in 2020, MLB instituted a new rule that any pitcher who enters the game in the middle of an inning must face at least three batters or finish the inning before he can be replaced, unless he is injured. This rule intends to reduce the length of a game by limiting pitching changes, but also reduces the benefit of a LOOGY on the roster, since most of the time he would also have to face a right-handed hitter, who is much more likely to get a hit off him.
look the runner back
- When there is a runner on first base, a pitcher who has already gone into the stretch may step off the rubber and either threaten a throw toward first base or just stare at the runner to encourage him to step back toward first. In either case he's said to "look the runner back" to first (rather than throwing over to first in an effort to pick the runner off).
- When there is a runner on second or third base (but not first) with fewer than two outs, an infielder fielding a sharp ground ball briefly stares at the runner to discourage him from trying to advance. The fielder then throws to first to force out the batter.
- A softly hit Texas leaguer that drops in between the infielders and outfielders. Also blooper. A fielder may make a superior defensive play, however, and turn a looper into an out. "Sacramento's Lloyd Turner ended the fourth with a sprinting, sliding snag of Alvin Colina's looping liner to left that sent the stands into a frenzy."
lose a hitter
- When a pitcher gives up a walk, especially when he gets ahead in the count or has a full count but gives up a walk, he is said to have "lost the hitter".
- During the regular season, the team lost more games than it won. For a modern Major League team, this means a team lost at least 82 games out of 162 games played in what is called the losing season.
- A series of consecutive losses.
lost his swing
- See find his swing.
lost the ball in the sun
- When a player attempting to catch a fly ball is temporarily blinded by the glare of the sun in his eyes, he may "lose the flyball in the sun".
- When a batter hits a long fly ball that is caught in the outfield, perhaps when a crowd reacts loudly thinking it will be a homer, the announcer may say the batter made a "loud out". "Home runs are already overrated. A home run in one park is a loud out in another." "Long, loud out as Garciaparra takes Green to the warning track. But the former Dodger makes the catch easily and we're in the bottom of the third."
- A baseball bat. Sometimes used in reference to a powerful offensive showing, "The Yankees busted out the lumber tonight with a 10–0 victory." Also timber.
- "'Dickson's Baseball Dictionary' A Labor Of Love," from NPR.org, 3/9/2009
- "Flashes of Adequacy". www.boyofsummer.net.
- "Scout.com: Local Sluggers Show Off in AA Home Run Derby". scout.com. Archived from the original on 2011-07-16. Retrieved 2007-10-07.
- Verducci, Tom (March 21, 2018). "Countdown to Liftoff: How Joey Gallo and Josh Donaldson Embody Baseball's New Era". Sports Illustrated. Retrieved December 10, 2020.
- Candace Buckner, "T-Bone appétit: Pitcher has good fall-back plan", Kansas City Star, June 21, 2007.
- Gordon Edes, Yahoo!Sports, July 4, 2011.
- Baseball Digest. Lakeside Publishing. 39 (4). April 1980. ISSN 0005-609X. Missing or empty
- Mark Gonzales, "'El Duque' dynamite in Sox debut", Chicago Tribune (April 8, 2005).
- "BaseballAmerica.com: High School: Everyone Roasts at East Coast". baseballamerica.com.
- Adam LaRoche, Akinori Otsuka, Albert Pujols, Major League Baseball - CBSSports.com Archived 2007-06-12 at the Wayback Machine
- Associated Press (8 November 2007). "Coolbaugh's death prompts MLB to adopt helmets for base coaches". ESPN. Retrieved 14 September 2014.
- David Singh, "With extra lively fastball, Ryan dominant", MLB.com, June 29, 2008.
- "Astros". Houston Chronicle.
- Ric Gano, "Cubs Win, Lose Soriano", AP (June 12, 2008)[permanent dead link].
- Schnee, Rick. "Field Of Dreams: Phillies Use The Longball To Take Game 1 From The Dodgers". bleacherreport.com.
- Rick Swaine, "Bob Thurman", The Baseball Biography Project.
- Josh Terrell, "Windsor Wins Fourth Straight; Cats Top Sox", Rivercats.com, May 18, 2007.
- Carlton, John G. "No innovations in baseball?". St. Louis Post-Dispatch. Archived from the original on 2008-08-30.
- Robinson, James G. (4 October 2006). "FINAL: Mets 6 - Dodgers 5". nytimes.com.