(idiomatic) Extremely brief and hurried.

(politics, intransitive) To make a brief stop on a campaign tour to make a speech or perform some other type of public electioneering.

Alternative spelling of wolf whistle

A whistle, of two notes, to signify sexual interest in someone.

To whistle in appreciation or sexual interest.

(sports) The blow of the whistle by the referee or other adjudicator signifying the end of the match.

(music) A small, high-pitched metal whistle with six holes that is blown using a fipple.

plural of penny whistle

plural of tin whistle

(colloquial) To make a show of bravery despite one's fears; to put on a brave face. / (idiomatic, US) To speak of something despite having little knowledge of it.