(idiomatic) To start anything tumultuous. / (idiomatic) To work together; to cooperate. / (baseball, softball) An expression used at the beginning of a game of baseball, or softball.

present participle of play ball

simple past tense and past participle of play ball

Third-person singular simple present indicative form of play ball

(vulgar, potentially offensive) Once someone has grown pubic hair or started puberty, they are old enough for sexual intercourse.

Alternative form of if there's grass on the pitch, play ball