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1.
When someone is giving you a blow job and you push the person's head to far that she throws up on your penis. While she walks away in disgust you quickly finish on her back.
It all started at 8 Great Tuesdays, We went down to the beach and I started receiving "Head" from my partner. Unfortunately, it ended in a Joe Nasty.
by Nonyabizzz June 08, 2011
 
2.
The act of ejaculating on a girls back after she gets up to walk away. This act usually takes place sometime after getting your wiener thrown up on, and the girl must be ugly.
I'm hanging out with my girl, i can only hope for the Joe Nasty.
by Grode Joey December 30, 2011