Turtle-slapper 

An enemy from an alternate universe that is similar to one your nemeses but I’m color and not black and white.

“You Turtle-Slapper”, said Spider-Man Noir aka Nicholas Cage.

Turtle-slapper by TardisBuilder77 December 16, 2018

nerd slapper 

an object which is (usually a ruler) used to slap cankles such as jessica

"man that cankle was asking for a spankering, so i got out my nerd slapper"

nerd slapper by cankleface April 4, 2008

Clam Slapper 

The definition of a Clam Slapper is when two dykes in initiate vaginal rubbing.

An example of a Clam Slapper is any lesbian activity that occurs due to vaginas rubbing, smacking or clapping of any sort.

Clam Slapper by Bluntman3456 January 18, 2011

Knee Slapper 

Sumthing very funny and ridiculous

Thats humungous.....
Thats Wat She SAid

ROFL THATS A KNEE SLAPPER!!!

Knee Slapper by SALKFJsalfk February 17, 2008

Granny slapper

The term Granny slapper is generally used to describe an old woman (Most commonly fat) Who is into making pornography with younger men. Granny slappers can be described as Skanky and/or slutty individuals for being notoriously dirty. This term can also be used to describe someone's Grandma as an insult.

"Bro, is that his your over there?"
"Yeah, why?"
"cause' she's a fucking granny slapper"

Granny slapper by Wayne king June 1, 2014

bitch-ass slapper 

A person who slaps a bitch's ass.

"Stop bangin my Mom you bitch-ass slapper."

bitch-ass slapper by Colin Farrell's Lover February 27, 2004

Knee Slapper 

When someones penis is so big that it slaps the inside of their knees when they walk.

What size condom would you like?

Let's just say it's a knee slapper.

Knee Slapper by Erak22 September 27, 2009