듣보잡

An abbreviation of ‘a worthless person whom one has never heard of or seen,’ used to refer to someone who is not well known to the public in a derogatory way.

‘듣지도 보지도 못한 잡것(잡놈)’의 준말로, 대중들에게 잘 알려지지 않은 존재를 낮잡아 이르는 말.