It is a universal adjective or verb (adv. form "Crompedly"), which can mean literally anything, from "run" to "stinky" etc. and the meaning of the word is to be deciphered from the context of the sentence.
Note: The adjective form is "Cromp", not "Cromped" or "Cromping", because the latter two (when spoken) just sound like you're replacing the word "Fuck".
I fuckin' CROMPED my way to the gym today; I almost ran a red light.
Duuude... this weed is totally cromping my mind.
Come on, I'm in a hurry; can you do that more crompedly?
Did you just cromp yourself?
What the hell? Jeremy's in the hospital. He's so fucking cromp right now. I'll start looking for a eugoogalizor.