slip out 

when a guy is having sex with a girl, doggy style and his penis slips out upon trying to be thrust in.

I was banging this chick real fast doggy style and i kept getting the slip out.

slip out by nicky v. July 14, 2006

slip out 

To leave a function without telling anyone you are leaving.

Has anyone seen Lewis? He must have slipped out.

slip out by N Jacobs June 23, 2004

slip out 

1. Nip Slip
2. Bra strap/ panties showing

she suffered a slip out in the party yesterday

slip out by bianca267 January 5, 2014

slip out 

When you stand up for a pee and diarrhea slips out of your anus onto the floor. Usually when having violent diarrhea.

I just had a slip out. We need to clean the floor.

slip out by 124scratch May 14, 2014

slip out 

when a turd comes out of your butt unexpectedly.

I ate a whole cheese pizza and was walking home when I had the worst case of diarrhea come on and I couldn't hold it, so I had a slip out.

slip out by J.E.F. & R.M.K. September 26, 2011