ninasaurus 

it is a type of dinasaur that you can find in chlorinated locations. it is often used in dino tosses, and makes a variety of dinosaur sounds. the dinosaur loves to have tea parties and drink terydactyl tea from bright colored cups.

Where is the Ninasaurus?

ninasaurus by neanosaur January 21, 2010

Assistant Ninja 

Holds and sharpens the many long objects a ninja happens to carry

" Ah ye, assistant ninja ho' fo' u"

Assistant Ninja by Rah nigga May 13, 2005

Cow ninja 

A cow who is a ninja and stands on motherfuckers who try to mess with him. A cow ninja is also a fast cow who knows how to handle his weapons and use his speed to propell him/herself onto walls, basically running on walls.

"Omg look a cow ninja!" says the kid
"moo" shink!!
the cow says "another head gone, moo"

Cow ninja by Yoer November 14, 2007

menu ninja 

someone who places menus under your doorway with seemingly ninja like stealthyness.

The menu ninja strikes again, how do they do that!

menu ninja by skitzel February 21, 2009

Lick Ninja 

An animal (in particular, a dog) that will sneak up on you while you're watching TV and lick you to death

Look out Rob, my dog Hildi is a real lick ninja.

Lick Ninja by gigger06 July 19, 2010

Poop Ninja

When one takes an accidental shit in their pants, and then blaming it on a fictional character, sometimes refered to as just "someone", or the "Poop Ninja"

Can be used as a verb, as well as a noun, sometimes even both.

Example 1: Someone took a shit in my pants, I don't know who, and I don't know why, but this is an issue that needs to be addressed immediately

Example 2:
Jimmy to Ricky: Dammit! Look out man, The Poop Ninja is on the loose. He got me.

Poop Ninja by Big_Mac October 27, 2010

unicorn ninja 

the epic unicorn that can defeat ninjas, and that is so epic, it is a ninja.
every time a ninja unicorn poops, more epicness is spread throughout the world

unicorn ninjas dont eat rainbows and poop butterflies,

they eat lightning and poop epicness

unicorn ninja by X3 time January 4, 2012