The act of skateboardinglong distances over flats and inclines without touching foot to ground, using perpetual surf-like pumping motions, sometimes switching between "goofy" and "standard" pump stances. Longboards for Skumping are generally in the 36" - 43" length range with 25"+ wheelbases, longer than skateboards used in Giant Slalom racing.
You sit down on the toilet, ready to receive your average, run-of-the-mill blumpkin. But wait, why are your arms so cold? You put on your Snuggie and call your bitch into the bathroom, proceeding to cover her body with the rest of the Snuggie. Dutch oven blumpkin, bitch.
Derp: "Duuude, my girlfriend gave me a snumpkin last night!"
Derpor: "No waaay, duuude, that's like a dutch ovenblumpkin!"