1: The smell resulting from anal fingering or from Mary Jane Rottencrotch.

2: Like a Boogan, etc.

1:"After having 3 in the pink and 1 in the stink, I had Funk Knuckle...so I gave Sara a Filthy Sanchez"

2: "John's being a Funk Knuckle"
by SuperFan January 13, 2007
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