jismslap 

When you cum in your hand and slap your girl's ass.

"I jismslapped that girl's nice ass"

jismslap by p00py March 20, 2012

jismslap 

When a guy cums on his hand and slaps the girl's ass.

Man: Dude, i just jismslapped my girlfriend last night.

Other man: That's awesome dude!

jismslap by Asian guy April 25, 2012

jizmslap 

A post-coital activity wherein the dominant participant ejaculates in his palm & then proceeds to slap the recessive participant on the buttock with the same.

Kim Kardashian gets a lot of jizmslaps from what I hear.

jizmslap by J0hn5mi7h April 30, 2015