(snooker, pool) To pot the cue ball accidentally after hitting the object ball.

(historical) A private lottery, especially when illegal. / (historical, Britain) Alternative form of little go (“university exam”)

A weight which is dropped into a bore, as of an oil well, to explode a cartridge previously lowered.

present participle of go postal

A general bustle of activity / (in the plural) The activities of a specified person or group

present participle of come and go

(informal) Alternative form of there you go

You have done it, or are doing it, correctly. / Used to explain or justify one's course of action. / Expressing exasperation.

(intransitive, slang, vulgar) To behave in an extreme manner; to act without restraint, especially by becoming explosively angry.

(idiomatic) To become obsolete or outmoded.