Ninja Skee

an unexplained white stain on your clothing which obviously can not be explained.

What is that stain on your pants? Dang, I must have gotten ninja skee!

by chrism2yo January 23, 2008

Ninja Rampage

When an individual succombs to the pressure of fear, anger, and/or insanity and begins taking out people or groups of people with cunning tactical ninja like efficiency.

Margaret went on a ninja rampage after missing a deadline at work as she stealthfully cut off every driver within a 2 mile radius down i-5 before catching up to her boss and ran him into the ditch.

by nehlewolf May 13, 2011

Ninja Mission

When you do something you know you're not supposed to do (whether it's good or not so good) or when you do something that other people (like your parents) don't want you to do.

Well...sneaking out to Caid's party at 11 p.m. was a real ninja mission.

by avtor17 February 7, 2018

Ninja whinger

Someone that complains by stealth in order to undermine their victims.
A person that uses something you've told them in confidence to get at you behind your back.
Someone that deliberately puts shit on you for personal gain.

Heads up man, that mofo is a ninja whinger - don't tell him shit.

by KR00ZZ July 8, 2012

Ninja squirtle

A stealthy shart that sneaks up on you without warning.

I was on my way to the bar when *BAM*, Ninja Squirtle attack.

by L0L0 June 9, 2015

Fat ninja

When a girl on tinder posts pictures of only her face, and hides the fact that she's fat

Had a date with a really sneaky fat ninja, can't believe I didn't see her second chin in her profile pic!

by Jbomb66 December 2, 2014

Ninja aggressive

its like aggressive (in the passive aggressive sense) but you dont know theyre being aggressive. ....sneaky aggressive.

not to be confused with passive aggressive

Like some farts (silent but deadly)

Im aggressive, but you dont know its happening. Im like ninja aggressive.

by edudnikihc August 1, 2016