butt-munch

buttmunch

rude slang One who is stupid or irritating. Ugh, don't even listen to that guy, he's such a buttmunch.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

butt-munch

n. a despised male. (Usually objectionable.) You dumb butt-munch! Why did you do that?
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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References in periodicals archive ?
AMONG the duo's favourite phrases are "bunghole", "butt-munch" and, of course, "heh, heh, heh, heh".