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Similar to the donkey punch in origins, but different in the fact that the one fucking the woman from behind jumps on her back while fucking her and then proceeds to pummel her in a wild fashion. After the woman is out cold he then ends this sexual act by throwing his own feces at the woman.
To relieve stress I went over to your mom's house and gave her a good ole' Monkey Mangle.
by Goat May 04, 2004