hahaha..It sounds like 조카(= a nephew) to me, but as mynick replied above it can be considered as "fxxk you" in a slangy phrase depending on people. \^o^/

I really hate to tell you about this but your name sounds like a four letter word, a very vulgar word in Korean. This Korean slang word's pronunciation is something like 'jokka' and its literal, word-for-word meaning is "Peel off your penis!". It is one of the common cursing words in Korean.

Haha, that sucks! You better come up with a new name if you go to Korea. How about Andy?