A delusional pathetic man who eats everything like a big, fat, starving pig and catcalls young women and foolishly believes that they are actually turned on by every sweaty, disgusting roll of fat.
*Woman gets cat-called and explains to friends*: I met a fatty bum batoday
The British equivilant to a fanny pack, becuase fanny back in Britain means something entirely different. (Let's just say, in England, only women have fannies.)
SEE: fanny pack