(informal) A sudden, unexpected and unintentional change in the pitch of one's voice when speaking or singing, which often affects boys during puberty.

crazy; demented

An outdoor children's game in which participants try to maintain hold of hands as random movements by the leader at the head of the line increase the force at the tail, as with the end of a whip.

(figuratively) To make harsh demands in a position of leadership.

(slang, humorous) A lesbian.

A highly functional, smooth-running team.

Third-person singular simple present indicative form of crack up

(slang, UK, Australia, transitive) To flirt with; to approach and speak to (someone), seeking romance, love, sex, etc.

A species of willow native to Europe and western Asia, Salix fragilis.

plural of crack baby