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1. A headmug is actually a suffix for an adjective or insult.
2. Can also be an idiot, nincompoop, or a friendly way of saying you're retarded at the right time.
3. Someone you really don't like and tell them they're a "headmug" simply for acting stupid or saying something that you don't want to hear.

Originated from the Midwest, Indianapolis.
1. Guy: Hey did you know the sky is blue?
Me: Man, u a headmug, quit trippin.

2. Guy:Do you like my ugly shoes?
Me: Man, ou a ol' ugly shoe wearin' dumb question askin headmug.
by Baj Brown February 25, 2009

Words related to headmug

backside face goober idiot retarded