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.
by ?Ninja May 15, 2005

When you listen to a song by Pentatonix and get caught off gaurd because of a beautiful High Note done by their Tenor Mitch Grassi! In songs such as Hallelujah,Aha!,Can't Sleep Love
by CPsupergirl March 6, 2023

by the giant robot March 14, 2010

The repeated action of slapping your ball sack against the throat/neck of the person slobbing on your knob. Requires a loose, dangly scrotum and rapid, back and forth, throat fucking.
Rachel’s a little banged up today after that round of gizzard slaps.
I could hear nothing but moaning and gizzard slaps comkng from my roommates bedroom.
I could hear nothing but moaning and gizzard slaps comkng from my roommates bedroom.
by Eaton Holgoode January 9, 2019

by Ellio's Pizza December 11, 2016

Hoop slap is like a happy slap, except you do it with your anus. The hoop slapper must first relax their anus muscles just enough to be able to slap their friend round the face with it when they're least expecting it, resulting in them being repulsed and humiliated, yet left breathless from the shock and rolling around the floor with laughter because they didn't see it coming!
Hoop Slapper: *approaches from behind* Hey gurl...
Victim: Hey you, whats up! *turns around*
Hoop Slapper: *hoop slap* Gotcha!
Victim: *gets hoop slapped* Oh what the hell! Hahahaha. I'll get you next time!
Victim: Hey you, whats up! *turns around*
Hoop Slapper: *hoop slap* Gotcha!
Victim: *gets hoop slapped* Oh what the hell! Hahahaha. I'll get you next time!
by Nola070619 March 1, 2011

Last night, things were getting hot between Jeff and Gary, Jeff's extremely large hand slapped Gary's ass with a connection so good it produced a meaty noise. It was a meaty slap that turned Gary on.
by Sanchezinator July 25, 2016
