Top Definition
Of, or pertaining to a muff that is so ridiculously large it busts in your face as you try to go down.
Kasia's bush is a muff buster. Kasia's rug muff busted in Justin's face.
by Jenna Tolls April 26, 2006
5 Words related to muff buster
A very large penis; a man with a very large penis.
"DAM but the muffbuster on him. I won't walk straight for a week, I swear!"
by SliggX January 16, 2008

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