"Co za asy" translates from Polish as "how ace". Google Translate gives you "what aces", but go figure. In other words, it's being used sarcasticallyin the face of an epic fail.
a word said by the vikings when achiving great victory, such as putting up a viral video. also used by raywilliamjohnson.
"(viking king)we have just defeated the enemy! (viking boy) "co za asy!!!!!"