A foolish or stupid person.
A male donkey.
An inappropriately rude or obnoxious person.
A jack and an ace as a starting hand in Texas hold 'em.
A kind of bootleg liquor.
To behave very obnoxiously.
Dumbass or idiot.
A set of skills or competences
A set of pre-existing routines for use in writing new programs.
A storage case for tools.