Wonder Bum

Best definition
Wonder Bum
A superhero homeless person.

Skippy the wonder bum saved New York City from a meteor
Wonder Bum: define #2
The British answer to WonderBra! Butt bra that enhances the buttocks.
‘Binikis’ are wonderbums that come in two pieces: the lower piece accentuates the butt for that ‘fuller’, uplifted look.