Ninja Reacharound 

Unexpected joy from a nearly invisible source.

I didn't expect to enjoy that new Roland Emmerich film so much, but the experience was certainly a ninja reacharound.

Ninja Reacharound by vernacular_ninja November 12, 2009

ninja gangsta

a dangerous combination off a hood on the street and a japaneese terror to all mand kind; absolutely the scariest beings on the planet

first known ninja gansta: rahbecca willette

most ninja gangstas are incognito

ninja gangsta by the 2nd ninja gangster November 22, 2009

Ninja Pole

A case often seen in shows like AFV and It Only Hurts When I Laugh, a ninja pole is a kind of pole of some sorts like a lamppost or street sign that you run into. You don't see it coming and you could've sworn it wasn't there, so when you walk along you ram into it and hilarity ensues.

I was walking down the street, minding my own business, then suddenly BAM! A fuckin' ninja pole got me!

Ninja Pole by Enviousness January 7, 2010

comedy ninja 

Someone who is not normally funny displaying brief and unexpected humor.

Marie-elaine is a comedy ninja, you never know where she will strike.

comedy ninja by dj freq August 22, 2005

Fruit ninja 

Some who try’s to harm themselves picking left or right

I was just about to play fruit ninja

Fruit ninja by Skeetsheet23 July 21, 2021

Nocturnal Octopus Ninja 

A nocturnal octopus, highly trained in the art of being a ninja. Will eat you, if you do not pay it proper respect.

Bob: Oh my goodness, I had a meaningful dream last night...
Tom: No way, bro. What happened??
Bob: The nocturnal octopus ninja came to me, he told me all the answers, man.

Tom: Wow...

Nocturnal Octopus Ninja by VISAGEdeDUNETTE December 21, 2010

Sex Ninja 

A person who can engage in sexual intercourse or masturbation so stealthily that the people in the adjoining room do not suspect a thing.

Dave: Dude, did your parents cath you and whats-her'face screwing last night?

Ed: No way, man. I'm a sex ninja.

Sex Ninja by Wesker June 11, 2006