ninja'd 

When posting on a forum, you submit a post only to find that someone has posted the same thing only seconds earlier.

Ha ha, Julia Roberts is so lame.
----
Ha! Julia Roberts is so lame.

EDIT: DAMMIT! Ninja'd!

ninja'd by mrespman November 4, 2005

Ninja plz 

a term used to replace "nigga please" so if you say it to someone they cant get mad at you for a racial slur.

Mike: Yo man you wanna bite of this turkey sammich?
John:Ninja plz! I aint need no taste of yo grubby lil sammy!
Mike:Hey dont call me a nig...oh wait nevermind.

Ninja plz by maxatron January 7, 2009

Ninja Wank 

the art of wanking quietly and discretely in public or in an area of high visablity, or simply the art of wanking like a ninja.
A secretive faction of monks from long and far have mastered this form of masturbation whilst going out there daily rituals.
It is said to bring inner peace and balance to ones self, but costs a fortune in laundry bills.

only the masterful eye can see someone having a ninja wank, but if someone does this would be the reaction...

man 1- 'Dude wtf is that man doing in his pocket?'

man 2- 'Must be having a ninja wank'

man 1- 'Holy shit i thought that was just in fairytales'

Ninja Wank by Shaggy Quinton June 24, 2010

Ninja Deuce 

When you take a particularly nasty shit in the bathroom of someone you hardly know, then tell no one, like a true ninja master.

Holy shit dude, I am pretty sure that Rachel's friend whatsherface, ninja deuced us last night. Thats the last time i have her friends over for Mexican food, twat.

Ninja Deuce by Arsenal89 August 15, 2008

Ninja Mistake 

Something that doesn't exist.

Apparently, fate and Ninja Mistake are one and the same.

Ninja do not make a mistake, you fucktards.

Ninja Mistake by lmao November 22, 2004

ninja approach

Sitting in a dark corner, waiting for your target to let their guard down, and then raping them.

Usually done in a BLUUAAARRGH fashion.

Dude 1: I raped yo mom last night, I used the ninja approach.
Gaby: Did you at least scream really loud while doing it?
Dude 1: Totally man.
Gaby: Fine then.

ninja approach by captain rape July 16, 2010

Ninja fucked 

To have sex in an extremly fast, violent, but pleasurable (for both parties) event. The idea of "Fucking like a Ninja" is to get in, out, and off, before you can get caught, be it by parents, angry spouses, or even the police, in some rare occasions.

She got ninja fucked, dude. Right after they both got off, he was gone like a goddamn shadow.

Ninja fucked by Andrew Flanagan March 4, 2006