Baseball Slang Glossary: 42 Terms Every Fan Should Know

Baseball has its own language, much of it more than a century old. Players, broadcasters and fans use slang for everything from pitches and hits to bad days at the plate. Here are 42 of the most common terms, from ace to yakker, with what each one means.

Baseball Slang A to Z

Term Meaning
Ace A team’s best starting pitcher
Around the horn A double play from third to second to first, or tossing the ball around the infield after an out
Backwards K A called third strike, written as a reversed K on scorecards
Bandbox A small ballpark where home runs come easily
Bang bang play A play at a base so close it happens in an instant
Barrel The ideal combination of exit velocity and launch angle
Battery The pitcher and catcher together
Bloop A weakly hit ball that falls between infielders and outfielders
Can of corn An easy, routine fly ball
Cheese A hard fastball; also heat or gas
Chin music A high, inside pitch meant to back a hitter off the plate
Cleanup hitter The fourth hitter in the lineup, usually a power bat
Closer The relief pitcher who finishes close games
Cup of coffee A brief stint in the major leagues
Dinger A home run; also tater, bomb, jack or moonshot
Eephus A very slow, high arcing pitch
Filthy Pitches with nasty movement
Frozen rope A hard, straight line drive
Golden sombrero Striking out four times in one game
Hat trick Striking out three times in one game
Hill The pitcher’s mound
Hot corner Third base
Hook A curveball, or a manager pulling a pitcher
Junk Slow off speed pitches and breaking balls
Maddux A complete game shutout on fewer than 100 pitches
Meatball A slow, straight pitch right down the middle
Mendoza Line A .200 batting average, named for Mario Mendoza
Painting the corners Pitching precisely to the edges of the strike zone
Pickle A rundown between bases
Punchout A strikeout
Rake To hit very well
Rubber game The deciding game of a series tied at one game each
Seeing eye single A ground ball that finds a hole between fielders
Southpaw A left handed pitcher
Texas Leaguer A bloop hit that drops in front of the outfielders
Twin killing A double play
Uncle Charlie A curveball
Utility player A player who can handle several positions
Walk off A hit that ends the game in the home team’s last at bat
Web gem A spectacular defensive play
Wheelhouse The part of the zone where a hitter crushes pitches
Yakker A big breaking curveball
Quick reference
Slang by category
The terms you will hear most
Home runs
Dinger, tater, bomb, jack, moonshot
Fastballs
Cheese, heat, gas, high cheese
Curveballs
Hook, Uncle Charlie, yakker, deuce
Soft hits
Bloop, Texas Leaguer, seeing eye single
Strikeouts
Punchout, backwards K, hat trick, golden sombrero
Defense
Hot corner, twin killing, web gem, can of corn
Pitching staff
Ace, closer, battery, hill

Where the Slang Comes From

Much of baseball’s vocabulary came from 19th century players and early newspaper writers, and broadcasters kept it alive on radio. Some terms honor people, like the Mendoza Line and the Maddux, while others come from everyday life, like a can of corn. New terms keep arriving too, from barrels to web gems, as the game changes.

For the code behind the language, see baseball’s unwritten rules.

Related

What is a Maddux · What is a Texas Leaguer · What does can of corn mean · Baseball’s unwritten rules · What is a walk off

Terms cross checked with the MLB.com glossary.