1 definition by WillVisitIndia

GUPO

Gay Until Proven Otherwhise. Someone who hasn't been seen dating anyone of the opposite sex for quite some time/ever. Friends or colleagues will assume that such a person is gay until they have seen "proof" to the contrary. Mostly used about women.

Derived from the thumb rule of justice: "Guilty until proven otherwhise."

Oh, you know, nothing much - so the usual. She's a GUPO if I've ever seen one.

by WillVisitIndia July 6, 2010