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1.
After your finished taking your girlfriend from the front, you pull out the condom full of semen.(she doesnt know you blew your load) While pretending to blow a load in her face, she closes her eyes which is when you take the condom and sling shot her in the eye.
Dude, i gave kelly the Slippery Slingshot and now shes blind.
by KJmagicSauce November 03, 2004
 
2.
a sexual finishing move where after the male ejaculates into a condom, he quickly removes it, takes aim, and fires it at his partner's face. can be friendly, but is usually beyond rude. see angry pirate .
hey joey, if you really want to end your relationship with suzy, there's always the slippery sling-shot .