(softball) A non-varsity softball team, typically played by youths (usually girls) under the age of 18. Frequently played in small cities and towns, sponsored by a local business and coached by volunteers.

(slang, vulgar) The scrotum.

(idiomatic) To fail in one's responsibilities or duties, or to make a mistake, especially at a critical point or when the result is very negative.

(US, idiomatic, vulgar) A person or task which is excessively demanding or punishing.

plural of ball boy

plural of golf ball

A ball of paper chewed to a pulp and then projected by spitting (usually by a schoolchild at the ceiling).

An early arcade redemption game in which balls are rolled up an inclined lane, aimed at holes of various point values.

Alternative spelling of nine-ball

A short-lived glowing ball sometimes observed to float in the air and thought to consist of ionized gas associated with thunderstorms.