(informal) Until very late; until the small hours.

(literally) A gunshot wound to the head. / (colloquial, in similes) Something very undesirable or unwanted.

A summerhouse. / (US, Southern US) A privy. / (India, historical) An Anglo-Indian suburban villa.

A wheel with long curved scoops, for raising water.

(horse racing, informal) A horse race in which a single horse takes such a considerable lead that the other horses are no longer contenders to win.

Alternative form of know one's ass from a hole in the ground

(sports, UK) A victory lap (celebratory extra lap).

Any ant of the species Formica rufa.

(nautical, slang) An awkward, lubberly person. / (nautical, slang) One of a mythical body of marine cavalry, for whom wild flights of imagination are best reserved.

(idiomatic, vulgar) To have an adequate level of knowledge or skill; to understand what one is doing or talking about.