Hahaha. Where did you hear from? haha.. I think the wright sentence is "에미야 국이 짜다". 국 is korean soup. 짜다 means salty. This is a kind of korean joke. (Not traditional but young ones sometimes use this in internet chatting.) There is korean womans call their daughter-in-law '에미' . So... this expression describes a situation that mother-in-law finds fault with their daughter-in-law(I can sure that the soup is not saulty!) When a guy do this joke...then another man will do counterpart of this in 80%. "Then mix water. Mom" This joke is just kidding. Not have a specific meaning. But I recommand that do not use this in front of old people. I'm not good at English enough. Please understand.

It might be "에미야! 그깄쟈? 나와." ([address word for daughter-in-law]! Is it you there? Come on out.), although it's just a wild guess. 그깄쟈? = 거기 있지? (Are you there? / Is it you there?) It can sound like 그기쨔, 기기쨔, 거기째, and other ways. Anyway, it is hard to accurately describe such dialect phrases, because the intonation probably makes a greater impact than the syllabic pronunciation.

"에미야" this word means that your grandmother or granfather are calling your mother. a woman has a child or chidren. she can be called as "에미야" from anyone who is much older than her. In man version, there is 애비야 and the other you askd, i am sorry that i have no idea.