Completely unrelated to the word woof. It's like, when you're really messed up on drugs, and you start rambling and saying a bunch of stupid crap, you invent new words. Woff is one of those words. It has nothing to do with anything.
Often used at lunch time, with finger food, or with fast food after a night at the boozer.
Colloquial term from the West Midlands, England, UK.
Terry:" Pass me the garlic bread, Ima woff that down."
Jimbo:"Did you see Jake eating those chicken wings, he woffed them down"
Sophie:"You are woffing those down"
A wannabe goth, A woff, Someone who acts depressed, shows no emotion and listen's to screamo, claming its goth, also does not own any goth clothes but says their clothes are goth when their not.
"Hey look at this band their so goth! *shows screamo band or punk band* Also ive got some bright red jeans coming in the mail soon, ill be so goth" A woff