by Andrew-B June 3, 2007

by thebathtubsophist January 10, 2012

by Big Naurt June 11, 2011

An injury obtained while playing ninja.
Dude, what is that cut on your arm from?
It's a ninjury.
Did her ninjury really cause her to go to the ER?
Umm, yeah, she got her eye poked out
ninja
slap
blood
It's a ninjury.
Did her ninjury really cause her to go to the ER?
Umm, yeah, she got her eye poked out
ninja
slap
blood
by Champion Ninja March 14, 2010

by Lamvao September 30, 2007

by Omegatron Hard'mofo'castle September 5, 2011

1. An injury suffered while attempting something beyond one's ability. (Often preceded by "Hey, check THIS out!")
2. An injury suffered without the knowledge of the injured party. Possibly caused by ninjas.
2. An injury suffered without the knowledge of the injured party. Possibly caused by ninjas.
1. "Hey, check THIS out; I'm gonna jump this ditch!" *SPLAT* "Dude, you OK? That's a pretty heinous ninjury!"
2. "Dude, where'd you get that cut?" "Beats me, some kind of ninjury."
2. "Dude, where'd you get that cut?" "Beats me, some kind of ninjury."
by High C September 23, 2012
