like the original Muzzy, a term referring to facial hair, mainly on the upper lip, usually worn by senior male collage students, hipsters or ron burgundy but unlike the plain Muzzy a Dirty Muzzy is course and full enough to trap food particles and grease so as to make it smelly and manly and unattractive to females... or is it?
hank: hey are you celebrating Dirty Muzzy May?
Dank: ya man. Right now it's only a Johnny Depp but just you wait till its a full on Dirty Muzzy.

or

Steph: ew look at that Dirty Muzzy. I would never kiss that.
by composer rockmaninoff May 3, 2010
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