Glossary of baseball

This is an alphabetical list of selected unofficial and specialized terms, phrases, and other jargon used in baseball, and their definitions, including illustrative examples for many entries.

("0-0", "0-1" "1–0", "0–2", "1–1", "2–0", "1–2", "2–1", "3–0", "2–2", "3–1", "3–2") The possible instances of the "count", the number of balls and strikes currently tallied against a batter. Traditionally, the first number in the count corresponds to balls, and the second, strikes; however, Japanese and Korean baseball leagues use the opposite order (strikes followed by balls). The latter practice, however, has given way to the more traditional ball/strike counts in both broadcast and stadium references, as events such as the Asia Series now feature countries (Taiwan, Australia, Europe) where the ball count is announced before strike count.

Colloquial term for the 1919 Chicago White Sox, of which eight players were accused of conspiring to lose the World Series, and were subsequently banned from baseball for life.

'Roll a bump' is a colloquial east coast slang for turning a 1-6-3 double play or a 1-4-3 double play.

A tongue-in-cheek expression used to refer to players who had successful careers, but whose stats and/or overall performance are not good enough to put them into consideration for the Hall of Fame. Example of players said to be in the "Hall of Very Good" are Chris Carpenter,Lee Smith, and Mark McGwire.

Said of a team when it scores eight runs in one inning. Broadcaster Eric Nadel used this term on 8 August 2015 when the Texas Rangers sent eight men across home plate in the 11th inning, defeating the Seattle Mariners 11-3. May also be used when a team gets the opposing pitcher charged with eight runs over one inning or a series of innings.

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