cutter
n.— «It is a bread-and-butter pitch for many left-handers—the fastball that bores in on right-handed batters, a “cutter” as it is known.» —“Slumping Renteria: ‘I feel bad’” by Lynn Henning in Seattle, Washington Detroit News (Michigan) July 5, 2008. (source: Double-Tongued Dictionary)
Further reading
That little button on top of a baseball cap? Some people call it a squatchee or a squatcho, the latter popularized by comedian Rich Hall’s book Sniglets (Amazon), which features apt but made-up words that aren’t in any dictionary. This is part of a...
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...