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1.
being the greatest loser, i.e. a biger one!

(often mistaken for bigger, but bigger isn't always better)
Hannah is such a biger!
by donutsrox April 03, 2006
 
2.
Biger means a major loser. Such as Tom Cruise.
Did you see that episode of Oprah with Tom Cruise on?
Yeah, he's such a biger.
by OoOpotatopieOoO April 03, 2006