One Human Humping Another while Asleep...
Sleep + Humping.... often done when both partners have PJs on.
One Night after a Long day at Work Bob Briefly Slumped Jane.... the Slumping was not of a duration that Jane found Acceptable.
Jane was left unfullflled.
Taking a dump while sleeping.
Hence Slumping.
#1: Bro, you were in the can for 2 hours, are you alright?
#2: I was slumping, ya prick.
Having sex or romping in a sleeping bag.
Me and jon saw two people slumping while we were walking around the campsite.
A hoe that's down to suck dick
Damn nigga I cain't wait to be off work I got a slump slump comin by my spot
To be extremely tired. Struggling to stay awake
Me: " you look like you haven't slept in days"
You: "I'm fuckin slumped man"