พจนานุกรมชีวิตในเกาหลี

สแลง

남사친

namsachin

A guy friend — a male friend who's just a friend.

OriginShort for 남자 사람 친구 (male person friend), to separate it from 남자친구 (boyfriend).

When to useClarifying that someone isn't your boyfriend.

CarefulCasual — fine with friends, out of place in formal writing or with your boss.