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!