A guy who likes to have sex with fat girls.
Billy: I think Eddie is a flubber nutter.
Tom: Why?
Billy: His last three girlfriends were huge.
this word is a replacement for any cuss word you want. its also used when you get bad news.
teacher: You failed your math test
you: Oh Flubber nutter
Friend: your dumb
You: Shut up you flubber nutter
Ryan Meacham is such a flubber nutter that jaedon was here