1 definition by Liquidnumb
1). Quick, stealthy appearance or escape.
2). Sneak attack from behind. In video games, often with a knife.
2). Sneak attack from behind. In video games, often with a knife.
I was on de_dust2 and he was the last guy left, so I went the other way, pulled out my knife and ninja'd him right in the back.
by Liquidnumb October 10, 2005