Synonym of raspberry (“a sound intended to resemble flatulence made by blowing air out of the mouth while the tongue is protruding from and pressed against the lips, used humorously or to express disdain or scorn”)
A shout or whistle expressing dislike, especially from a crowd or audience; a jeer, a boo.
A whistle blown by a theatre-goer to express disapproval.
A shout, whistle, or comment of a sexual nature, usually made toward a passing woman.
In the Eiffel programming language, a run-time error caused by use of the wrong data type.
To make such an exclamation.