A Whole Ass Holy Knight Full of Sacred Bat Shit Crazy.
Ass holy knights are how most of the Holy Knights in the Seven Deadly Sins came across in the beginning. And in the middle… and pretty much through the whole series.

Comic Dialogue
(If you have Wii Gloves for you wee little fingers it’s also electronic Braille.)

Titsune, big tits fox girl: “Wow, that guy’s really full of himself…”
Chauna, Mammazon warrior: “Yeah, he has to be a holy knight.”
Titsune, big tits fox girl: “Uh… A paladin?”
Chauna, Mammazon warrior: “No, a Holy Knight, a member of a holy order of a religion, Paladins are goody two shoes, Holy knights are just assholes.”
Chauna, Mammazon warrior: “Heh, that’s probably where the ‘holy’ comes from, they’re ‘assholy knights’ but the ‘ass’ part is obvious so they just say ‘holy.’”
Titsune, big tits fox girl: “Ass…”
Chauna, Mammazon warrior: “Well… We are in the position already…”