Australian slang (occasionally used internationally) for feeling as though you've been ass fucked. Usually used in the description of one's emotional state of despair, frustration and pain after a negative event such as being ripped off or played.
See synonyms: busted, broken, stuffed, reamed, rammed, nailed, screwed, boned, hammered, rooted
That store charged me double for no reason! I've been Trevied!
That birthday stripper your mates got you turned out to be a tranny? You got Trevied!