Montana Storm Drain

When two people are having sex, the man pulls out of his partner and while the bottom is stunned awaiting for ejaculation the top urinates on the terrified victim.

Jon: yo dude so I was chillin with Janet last night right?
Xavier: yea?
Jon: I totally pulled a Montana storm drain on her last night big cat
Xavier: dude no fucking way!!! Did you like major soak her?
Jon: yea dude bitch looked like an Oscar she was so yellow