simple past tense and past participle of crack up

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

(chiefly in negative constructions) Synonym of give a shit

An expert marksman with a gun.

plural of crack shot

A species of frog, Fejervarya cancrivora, native to southeast Asia.

(medicine, dated) A form of paralysis encountered by swimmers.

The signal for the final dissolution of all things by God; the last trump; the end of the world.

A species of lobster, Kiwa tyleri, that inhabits deep-sea hydrothermal vents near Antarctica.

A crane mounted on a movable truck. / A crane used on a railway platform.