Top Definition
Upon reaching climax during fellatio, the man places his left leg firmly against the woman's thigh and yells "make it stop!" Then, he rapidly extends his leg, firing the woman into the wall, or whatever happens to be behind her.
This chick was giving me head, and it felt so good that I executed the Westmont Slingshot. She ended up in the bathtub.
by SSWN, LHE June 08, 2006
5 Words related to Westmont Slingshot

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