ㅎㅇ

It is famous abbreviation, which means 'Hi' and it is same pronunciation as 'Hi'. It is actually '하이'(하이 is either Hi) but they make it shorter and it became 'ㅎㅇ'.

Friend: ㅎㅇ(Hi)
Me: ㅎㅇ(Hi)

by touhougood November 28, 2017