People who are never gracious in defeat and always have an excuse for not winning or dealing with a negative outcome. Also known as TSO.
Joe Rogan: So Tito, I saw you kinda lost it in the first round.
Tito Ortiz: No I didn't loose, some sweat got in my eye and I couldn't see, he just got lucky that's all. Otherwise I would've won.
Dude in Audience: That's what I'm talking about! Tito Ortiz Syndrome, straight from the source!