Knee-Snapper

Like an ankle-breaker, but higher up the leg.

LeDarius: Did you see when that guy got crossed?
Jevarious: Yeah man, that was a real Knee-Snapper

by dickey6969 May 18, 2017

Knee slappers

When a woman has saggy old lady boobs that hang so low they slap her knees when she walks

I'd totally do your mom bruh, knee slappers turn me on

by JarMa13 December 3, 2018

kneeslapper

When one finds something extremely amusing, while seated the person slaps their own knee in jubilation.

That joke was a hellava kneeslapper, I laughed my ass off.

by Count Funkula June 13, 2003

Kneeslapper

The most extravagant reaction to something of funny, or toast-worthy nature, where someone uses their hand to make contact with their knee typically in a very absurd and flamboyant manner.

Guy: hey guess what
Guy#2: what?
Guy: UR MOM
Guy: performs a kneeslapper

by Toastingurmom May 8, 2018

kneeslapper

Someone with a dick so big it slaps there knees while walking.

When ol boy pulled his kneeslapper out; she knew she was going to be walking with a limp the next day..

by lilsmarterthanaboxofrocks March 25, 2021

That's a kneeslapper

A phrase coined by a particular person who does theatre is lebanese and is super smart

THAT'S A KNEESLAPPER FOR SURE FOR SURE
*slaps knees wildly with a crazed look in her eyes*

by avamarie-is-super-pretty October 11, 2022

Polish kneeslapper

An acknowledgment of a bad joke by slapping your knee in an obviously sarcastic manner. Antonym: kneeslapper. Synonym: dad joke.

HA! That's a good Polish kneeslapper, Chad! HA! Ha!! ha!!!

by Champ Liberty August 3, 2019