Top Definition
The vagina. Derived from the male counterpart, skin flute. The back and forth motion of the head while performing oral sexual stimulation onto the vagina conjures images of the coolest blues jazz players going to town on their harmonicas.
Joe: Hey John, do you play any instruments?

John: Only the skin harmonica.

Joe: Never heard of that, what does it sound like?

John: Moaning.
by Ronductor July 20, 2008
cunnilingus,sister instrament to skin flute
He asked me if I play any instruments...I said yes I play the skin flute, but only if i'm accompanied by the skin harmonica!
by wellygrrl January 22, 2007
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