Clarify the meaning of this word, please.
I have never seen this word written, so I cannot spell it. I tried to find it using translators, but they don't give a definition that makes sense by any spelling I can think of.
The word sounds like "가시나." When I've heard it used previously, I always thought it meant something like "bratty little girl." However; when talking with friends last night, and discussing our upcoming move to 부산, one fellow warned me to "Be careful of the Busan gashina." I wanted to respond I was married to one, but I was unsure of the meaning after he said that ... but one of our other friends quickly responded to him that I was married to one, and my wife just laughed and agreed. Okay, it could still have a bad meaning and everyone joke with us since we're all close friends, that is true, but he seemed pretty obviously to be talking about adults when he gave me the initial caution.
So somebody, please help me to spell the word right, and please clarify the word for me. I apologize if it is offensive