two-seamer
n.— «One of the buzz words for the Mariners this spring and into the regular season is “two-seamer,” also known as a sinking fastball.» —“Notes: M’s staff riding two-seamer” by Doug Miller in Seattle MLB.com Apr. 7, 2006. (source: Double-Tongued Dictionary)
Further reading
Why do baseball announcers say that a pitcher who throws a high fast ball is bringing high cheese? The cheese might be related to big cheese, a term that in turn may go back to Hindi and related languages where chiz means “thing.” This...
A Winter Dictionary (Bookshop|Amazon) by Paul Anthony Jones includes some words to lift your spirits. The verb whicken involves the lengthening of days in springtime, a variant of quicken, meaning “come to life.” Another word, breard, is...