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1.
When a girl plays air guitar with her vagina; One hand is knuckles deep while the other is up in the air hitting imaginary frets.
Example 1
Bro 1: Bro I got a girl to play vaguitar for me on skype last night.

Bro 2: Rock on dude!

Example 2
Bro 1: I held vaguitar tryouts at my place yesterday.

Bro 2: How'd it go?

Bro 1: Bro your mom can totally jam.
by Belmeezy January 12, 2011