Top Definition
1:) One who munches sack; Basically a real asshole/faggot, or someone who is just plain detestable.

Today, Jimmy stole my books that I had borrowed from the library, what a sackmuncher!
by Talian June 11, 2007
1 more definition
A Guy who loves to munch on balls.

Sebastian: I'm soo going to munch on my bf sexy balls tonight!
Me: Sack muncher!
by kiwibitch January 26, 2009

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