splat mat 

when you ejaculate on some ones stomach (belly)

-damn dude i fucked this chick last night
- nice where did you nut at?
- all up on her "splat mat".

splat mat by Noel Rock March 2, 2010

Splat Mat 

That loud plastic unbreathable crunchy mattress protector that one uses to sheild from monsume moisture.

Good thing Ralph got a splat mat, his girlfriend just learned how to squirt!

Splat Mat by Wadsley June 29, 2023

Matt Splat 

When you cum on a girl's stomach and she pushes the cum down in her vagina and uses it as lube much to your surprise, disgust, and slight sexual curiosity.

Amy is such a freak she tried to give herself a Matt Splat much to my amazement and secret arousal.

Matt Splat by matt311311 May 6, 2009

Matt splat 

A some what portly old bastard. Often found smoking cigarettes and telling dirty jokes at the shop. He sells ice cream out a panel van.

Matt splat is a dirty old man.

Matt splat by Eatoutalexesass May 4, 2018

Slat-o-matic 

A mondo hard and soft dick

Bro I got that slat-o-matic, I'm finna beat this girl's pussy up

Slat-o-matic by Thicc.daddy69 March 19, 2021