It's when you cum in your hand and slap your girlfriends ass.

A loving gesture between two consenting adults.
Go on upstairs and jismslap my daughter. You earned it!
by flumpf January 25, 2012
Get the Jismslap mug.
A loving gesture between two consenting adults where a male ejaculates onto his hand and slaps their partners buttock(s).
Partner1: "AH!"
Partner2: "It's ok, it's just a jismslap"
Partner1: "Oh I love you toooo ;) xxoxoxo <3 ;)"
by RobertoElSexo February 9, 2012
Get the Jismslap mug.
When a man cums in his hand and spanks his girlfriend.

Originated from liamkylesullivan on youtube with his video "Dirty Scrabble".
"Go upstairs and jismslap my daughter! You earned it!"
by Gypsy1993 February 9, 2012
Get the Jismslap mug.
It's when you cum in your hand and slap your partners ass. It is a loving gesture between two consenting adults.

It's also a great word to help you win Scrabble (as seen and defined in the liamkylesullivan video "Dirty Scrabble")
"Dude, I heard you and the freaky chick Martha went out last night"
"Yeah man, and when we got back to my place, I jismslaped her, like a boss"
"You're the man, bro!"
by HeyMama555 January 28, 2012
Get the Jismslap mug.
The act of the male slapping the butt of a female sexual partner hard after the ejaculation in the male partner's hand by himself.
"I totally jismslapped my girl last night"
by MasteroftheSex January 26, 2012
Get the Jismslap mug.
When one cums in their hand and slaps their sexual partner in the ass.
"Go on upstairs and jismslap my daughter!"
by DaedalusReturned February 10, 2012
Get the Jismslap mug.
To ejaculate in ones hand and then slap some one on the ass.
"Did you see Tom jismslap Vera?"

"Yeah, it was so cute."
by Vera's Father February 9, 2012
Get the Jismslap mug.