catcall

Short definition from Wiktionary

Noun

1. 1
   A shout or whistle expressing dislike, especially from a crowd or audience; a jeer, a boo.
2. 2
   A shout, whistle, or comment of a harassingly sexual nature, usually made toward a passing woman.
3. 3
   A whistle blown by a theatre-goer to express disapproval.
4. 4
   In the Eiffel programming language, a run-time error caused by use of the wrong data type.

Verb

1. 1
   To make such an exclamation.