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1.
When three fingers is used to bang your girlfriend. The thumb for the clit. The point finger for the vagina. The middle finger for the anus. Used for multiple pleasure.

Also known as the Three Legged Dolphin.
Tom: I'm going to three finger bang you so hard.
Cindy: Yeah Tom, you know I love that shit!
by Hansie_kint February 25, 2013