Ninja slap

A slap made with such speed, with so little noise, that the victim is suddenly in pain without knowing what hit them.

Dude, the other day, I totally ninja slapped the local douche bag at my school. He never knew who hit him.

Ninja slap by JaxD. November 16, 2010

Ninja Splatter 

1. Diarrhea so bad you can shit through a screen door.
2. When some one pisses you off, and you have ninja training, and that person you are mad at has a screen door on their home...you take your explosive gas/fecal matter and blast it through their screen door; thereby causing the effect of the ninja splatter. This phenomenon occurs mostly in rural areas and trailer parks.

Jimmy cheated on me with my brother, he left his door open, so I hit his screen door with a ninja splatter to let him know I ain't taking it.

Ninja Splatter by Ninja_Star October 21, 2011

ninja slut 

A women who sleeps around without anyone knowing

Angelina Jolie is a ninja slut

ninja slut by Malicor November 21, 2011

Ninja 

An unending game involving more than one participant. The objective of ninja is simple. Fart in your hand, sneak up behind the unsuspecting victim, then cover both their nose and mouth in attempt to "assassinate" them. Ninja can start at any time. There are no rules or restrictions to your assassination attempts, but they must be carried out in the fashion mentioned above. The game will end when the other party specifically expresses they want to quit the game. (If they know what the game is.) Or if they gag or excrete any type of bile. If none of these are met, then the came will continue until then.

Me and bob were hanging out in the kitchen one night, until I farted in my hand while he was busy and cuffed his mouth and nose in attempt to assassinate him like a Ninja.

Ninja by Jack wangerdoodle. February 26, 2014

ninja party 

A party wherein girls are blindfolded while seating down at chairs; while boys go around in intervals talking to the blind folded girls

Michael kissed all the girls during the ninja party pretending to be the basketball varsity captain, James.

ninja party by Jamaal Charles July 6, 2014

Ninja Turtle Sex 

Sex with back packs on.

Hey wanna have ninja turtle sex?

What's that?

Sex while you're wearing back packs.

Ninja Turtle Sex by Ninjes August 31, 2016

Conversation Ninja 

One makes a single random comment in someone elses conversation, which ends up killing it and making it awkward for everyone else. This is similar to a ninja swiftly killing a target then exiting.

Guy 1: Hey, do you see that really hot chick over there?
Guy 2: Hell yea, Id hit that all night!
Conversation Ninja: I screwed her and gave her herpes *disappears*
Guy 1: Oh... Im gonna go now.

Conversation Ninja by ThruTheDesertOvrTheFence September 13, 2009