Slippery ninja 

The sexual act of masturbating onto a floor, leaving a sticky or slippery mess (depending on floor surface). An action intended to cause discomfort and annoyance to a female partner in the hope that she treads in the newly applied man-porridge.

*guy applies slippery ninja technique, girl walks into room* *squelch*
Girl: Oh my god that's disgusting! Why would you do that on the floor?!
Guy: I am slippery ninja, and as an owner of ovaries, you are the victim of my mischievous ninja deeds!

Slippery ninja by Slippery ninja February 28, 2010

slippery ninja 

When one male sneaks upon another male and inserts (slips) his "ninja" into the anal cavity.

Bob: Rob passed out drunk last night..
so i gave him a SLIPPERY NINJA!
Ralf: WAY TA GO!
Kim: AHHHHHHHHHHHHHHHHHHH! me too!

slippery ninja by Jon Delacruz May 15, 2006

ninja slipper 

a visible camel toe

yo man check out the hot asain with the ninja slipper bouncin around in spandex!

ninja slipper by thenewkrew September 7, 2006

ninja slipper 

pretty much the same thing as a camel toe. But a lot less comfortable.

Man that chick has one mean lookin' ninja slipper!!

ninja slipper by boondock saint79 January 24, 2010

ninjas slipper 

the shape of a womens genitalia when protruding through her jeans or shorts. thus resembling the shape of a ninjas slipper.

ninjas slipper

ninjas slipper by nortybollox October 24, 2009