Ninja Slap
A Ninja Slap denotes anything done with incredible style. It is generally performed at a rate which makes it unseeable, but because it is a Ninja Slap, all present understand what has just happened.
"So I said: that's what your dad said." John quipped. The group sighed. Suddenly, Arin's hand moved with incredible quickness and John doubled over holding his crotch.
Ninja Slap by ?Ninja May 15, 2005