(sometimes proscribed) He or she; used as a gender-neutral reference to the third person singular.

plural of any nook or cranny

plural of chicken or egg question

(obsolete) Win or lose; however things turn out, in any case.

(idiomatic) At any time; 24/7

All the coordinated physiological responses that the sympathetic nervous system initiates in response to stress or other emergency situations.

A question suggesting sexual intercourse: literally meaning "shall we go to your place or mine to have sex?"

(academia) The pressure to frequently publish in academic journals in order to gain tenure or to sustain a career.

(idiomatic, set phrase) At this sole opportunity, or not at all.

(Internet slang, humorous) Used to request a picture of a reported event, especially on an Internet forum. / (Internet slang, humorous) Used to demand verifiable evidence for a statement.