Poshka was used to sleeping on the street but when the nice lady gave hime shelter, a warm meal, then a fireside bed, he was as bumfy as a man could be.
Bumf is British slang for useless printed material. Bumfy is more of an adjective.
Miranda this proposal you've written is completely bumfy.
Refers to a sexual position. It is sitting on the toilet and taking a shit and getting a blowjob at the same time.
I got a fantastic bumfy off that chick last night.
getting drunk partying
I know Joe and all of them will be getting bumfy tomorrow so we should go.