Chubbthumping

When a person has a fetish for having sex with fat girls.

Duncan: What did you get up to last night?
Woolhead: I had sex with a fat bird.
Duncan: Ah, you were out Chubbthumping again.

Chubbthumping by RandyRhoads84 September 5, 2021

Chubthumping 

It's when you have sex with an overweight chick

Merlin: "Hey did you get any last night?"
Melvin: "Yeah, I banged gretchen last night."
Merlin: "Dude, you were chubthumping."

Chubthumping by Egore The Magnificient September 28, 2008