1. The act of screwing over a friend by throwing your genatalia in the air while he is talking to a girl.

2. The only way lonely men can get women to look at them.

3. When a group of ninjas karate chop your ass in half with chopsticks, a bag of rocks, and a dull ice cream scoop.
1. WHY DID YOU JUST NINJA STRIKE ME????!!!

2. That must of been a lonely bastard if he ninja stricked around Becca.

3. Detective: How'd he die?

Cop: He got ninja stricked...

Detective: Holy Shit..
by Francisco Perez IV July 24, 2011
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a hare-brained, living underwater-type adventure planned, usually, by a scatterbrain and that's doomed to fail from the start
if you're a scatterbrain and know it, don't plan a ninja counter-strike on your own
by Sexydimma January 13, 2017
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