Dump-A-Hump 

The action of taking a dump and humping it repeatedly for satifaction. This is a form of masturbation

Clint was vey satified after he dump-a-humped for several hours

Guy 1:"Dude have you ever tried dump-a-humping?"
Guy 2:"No how do you do it?"
Guy 1:"You take a dump then you hump it till you cumm inside of it and you feel satisfied!"

Dump-A-Hump by DRJizzGoodandChefSam March 29, 2009

take a dump hump 

the hump dogs form in their backs when preparing to pinch off a giant loaf.

uh oh, kylie's got the take a dump hump, better get her outside quick!

take a dump hump by CGPinFL June 16, 2011

Hump-A-Dump 

When your extremely horny that u put on porn and dry hump a pillow/Blanket then after cumming you fall asleep

When my brother leave my house after im going to do a Hump-A-Dump and call it a night

Hump-A-Dump by MyPPHurtsAlittle September 15, 2021