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1.
When one places ones erect member betwixts ones buttcheeks and holds it there thus setting the trap for the unsuspecting female about to perform oral sex. When the female pulls down the pants of the reciever, with a puzzled look the trap is sprung thus busting the female on the chin with hillarious results.
Note: Do only on fat ugly bitches and or fugly biotches.
Penis mousetrap: Springing the penis to a random face.
by Jared Wade August 08, 2006