Cumclunking 

When 2 people nut on each other at the same time

Hey bro let's start cumclunking
Yo I was cumclunking with this guy yesterday

Cumclunking by Nut eater May 16, 2023

cumchucking 

When a male ejaculates into his hand and continues to throw it as fast as possible at their partners face.

Dude I was cumchucking with Sara last night!

cumchucking by TheMemeLord September 11, 2016