A bumwaffle is a usless person who acts like they know EVERYTHING!!!! Bumwaffle people also like crumpets.
Girl: Did you see Tiffany talking to Brian about hoovers?
Girl 2 : Oh my god she was such a bumwaffle!
Girl: I know she told me she hates hoovers!
Girl 2 : She has no boobs also!
Cumbaffled is a word used to describe the action of being incredibly perplexed, confused, or puzzled while in the process of having an orgasm
bill: did you see the look on paul's face when he was getting head? he looked cumbaffled
jack: yeah its probably the acid hes on, i bet she looked like a unicorn to him