Outragoeously tremendous or outrageously horrendous, depending on the context.
Person A: Splinter Cell is outrendous.
Person B: No way man, Frogger beats Splinter Cell...
Person A: That's what I meant.
Person 1: Your new high-lighter yellow shoes are outrendous!
Person 2: In the good way or the bad way?
Person 1: um... *runs away*
Anonymous 1: Wow, you got asked to be a partner for that huge law firm? That's outrendous!
Anonymous 2: Yeah, I know.