Wifi Ninja

Someone who connects to a Wifi hotspot, without the owner knowing it.

A: Where are you?
B: Near a gasstation.
A: Hotspot?
B: Yeah.
A: Cool... Wifi Ninja!

by Artem_the_kid August 23, 2008

Ninja Ball

The act of farting into one's own hand, then "throwing" it into an unsuspecting target's face.

"Brian threw a ninja ball into Greg's mouth."

by Joe May 21, 2006

Nerf Ninja

The act of someone acting like a complete retard only to destroy his own reputation in attempt to gaining one

kid: Hello folks, i am your nerf ninja

others: wow, what a faggot

by IamPerson1 December 29, 2009

quim-ninja

any male who uses martial arts on a vagina. results may vary

I had no idea Steve was a quim-ninja, until he dragon punched my uterus last night.

by RossBC August 28, 2005

ninjas on fire

A synonym for something so kickass it could only be Halo 2. Stems from a speech by Jason Jones.

"Halo 2 is alot like Halo 1, except it's Halo 1 on fire going 120 miles per hour through a hospital zone chased by helicopters and ninjas. And the ninjas are all on fire too."
-Jason Jones

by Zuka July 14, 2004

Ninja Poop

The act of pooping while having a conversation with someone on the phone

"My poop quickly turned into a ninja poop when my boss called."

by drewh762 October 14, 2011

Ninja Jizz

The remaining jizm or spunk that eminates, some time later, from ones japs eye after a wank. Even after a good shake and pipe clean.

After a morning wank before work, you clean up and head to work only to find when you go for a piss you have found a whole load of Ninja Jizz.

by tehsnrub August 29, 2009