D.O.P.S.
Deprivation of Pussy Syndrome: a disease contracted after prolonged periods of not getting any.  Commonly found at places where attractive females are found few and far between, such as any of the service academies, or prison.
Guy 1: Dude, she is SO hot!!  I wanna get with her!
Guy 2: Are you serious? she's butt ugly!
Guy 1: Nah man, you're crazy.
Guy 2: Man, I think you're suffering from D.O.P.S.