Place it at the end of an exchange, after the other person has made their case, then follow it with Damn to close the exchange or Oh My God Wow when the reply needs a bigger reaction.
이 사운드에 대해
This is a very short spoken clip of the Hungarian phrase Nem érdekel, meaning I don't care, lasting just over a second. It carries a flat, dismissive tone that turns a brush-off into a joke, giving the listener a quick, amused shrug instead of a heated argument.