When a girl is performing felatio, the guy pushes too hard on the back of the girl's head and she slides up the shaft gagging and blowing out like a slide whistle. This is usually combined with a bit of vomit and/or saliva, making the shaft slippery.
I got pissed that this chick wouldnt deep throat, so I slippery whistled her, and now I got puke all over my boxers.
by Big Unca Mike September 08, 2007
The B was full blown last night. That girl's mouth must have been huge to fit his mammoth sized balls in there at the same time as his monsterous man-rod.
by Big Unca Mike September 04, 2008