after sexual intercourse the act of walking across the room taking off the condom and quickly spinning around and throwing said condom at the woman's face like a shruiken
I totally Ninja'd that ho last night!
by Jeffery Harrison Nancy November 23, 2007

A new tactic the the FPS Xbox 360 game, Halo 3. A Player lures another player into following them. Player 2 is following player 1. Player 1 goes around a corner. Player 2 Follows. Player 1 jumps backwards, and Player 2 passes under Player 1. Player 1 Melee's Player 2 and instantly dies due to an assassination. Ergo, Ninja'd.
by THISxGuy March 09, 2010

the act of doing something successfully in a stealthy manner & when exiting the scene, you say "Ninja" in a spooky tone to rattle other people in the area who didn't realize wtf was going on.
by L0Lpants July 19, 2011

When a Nerd playing World of Warcraft, steals an item that he has no apparent use for and his group member needed it.
by Dwnsdr3 March 02, 2010

by Lil Matt 88 October 31, 2008

by AwfulDarkJedi May 30, 2009

(verb) to mess with a member of the opposite sex's head, usually by women. Originates from the comedy routine of comedian Dane Cook.
by strongbadia7 December 09, 2007
