Fucktard Dumbass
Someone who has screwed up so many times that they earn the title of a fucktard AND a dumbass. It's usually used on Ex's (mostly boyfriends) that fuck up big time and continuously lie to get try and get out of trouble, but end up in deeper shit.
"my ex boyfriend is such a fucktard dumbass! he lied about his parents not wanting us to be together!"