A whistle blown by a theatre-goer to express disapproval.
A shout or whistle expressing dislike, especially from a crowd or audience; a jeer, a boo.
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.
An interruption during a show, especially a comedy performance
The long shining feathers on a cock's neck.
A feather ornament in the full-dress bonnets of Highland regiments.
To question harshly in an attempt to find or reveal weaknesses.
To insult, tease, make fun of or badger, especially during a comedy performance.
To prepare flax for spinning using special combs called hackles