The act of stealing and or rapidly consuming something that is not yours
Poop Steve: Hey! Where is my last snus pouch?
Fagpussytwatpoonfartlarkey: Oh, sorry man. I snorfed it
Poop Steve: You asshole! I thought i told you no snorfing!
the act in which one inhales smoke through the nostrils like they're snorting it, they then exhale through the mouth. This action gets you FUCKED UP.
When young billy was snorfing the weed; he got totally FUCKED UP.