it's the same thing as awesome, the
Musso brothers (
Mitchel, Mason and
Marc) frequently use this. many of their fans now use this term more than the normal spelling.
(on Twitter)
@mitchelmusso Who says
Ossum all the time?
hayley: I DO!
mitchel you're so
OSSUM! :D
-duuude, have you seen the new metro station music video?
-yeaaaah, it was
ossum!(: