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
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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
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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
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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
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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
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Ninja wood

The unexpected,unprovoked erection that occurs while in public. Usually characterized as coming out of no where, particularly in the morning (at work or in class)

Scholars maintain that it a
reverberation of morning wood...
similar to an after-shock associated
with earthquakes

Morning wood is to ninja wood as
Earthquake is to after-shock.
This morning, in my math class, I had a mean case of ninja wood that came out of nowhere. (It snuck up on me like a stealthy ninja)
by Chris A. P. February 08, 2007
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ninja focus

originated in the late 2000's. place of origin is english. slows down heart rate so that it seams like you are dead
Dale: i thought you were dead!
Brennan: No i was faking i used ninja focus!
by conotyui January 15, 2011
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