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Newnham; When you are hooking up with a girl, while you are going down on her, you stick one, or preferably two fingers in her anus. You then proceed to stick those same fingers in her mouth for a period of no less than 5 seconds.
I was hooking up with this girl the other day and she was pissing me off so I Newnhamed her.
by Josh McBell December 17, 2007
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