hummer

hum·mer  (hmr)

n.

1. One that hums.

2. Informal A hummingbird.

3. Baseball A fastball.

Thesaurus

Noun	1.	hummer - a singer who produces a tune without opening the lips or forming words singer, vocalist, vocalizer, vocaliser - a person who sings
	2.	hummer - (baseball) a pitch thrown with maximum velocity; "he swung late on the fastball"; "he showed batters nothing but smoke" fastball, heater, bullet, smoke pitch, delivery - (baseball) the act of throwing a baseball by a pitcher to a batter slider - a fastball that curves slightly away from the side from which it was thrown baseball, baseball game - a ball game played with a bat and ball between two teams of nine players; teams take turns at bat trying to score runs; "he played baseball in high school"; "there was a baseball game on every empty lot"; "there was a desire for National League ball in the area"; "play ball!"