1 definition by ownedagainbro

Top Definition
A complete and utter moron. One who constantly blacks out, forgets important things and subsequently argues their point to be valid when everyone in the room knows it's not. A muk also enjoys looking at the sky while speaking.
Sam: Bro, let's go eat at Bento
Bro: Let's make sure that fuckin muk doesn't come with us
Sam: It's cool, he's too busy NOT smoking pot tonight!
by ownedagainbro August 04, 2010
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