The phenomenon of the pelvic area suddenly becoming it's own being and thrusting towards an extremely hot person.
Friend 1- Dude, look at that guy, he's SO hot!
Friend 2- I know! Uh oh, I think I'm getting the Pelvic Thrust Syndrome!

Friend 1- Oh no! Restrain yourself!
Friend 2- It's too late! HELP!
by momma123 December 2, 2011
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