It derogatorily refers old people in s. Korea.

틀니(denture) + 딱딱(chattering) = 틀딱
심슨 가족의 할아버지도 틀딱인가 (Is granpa simpson in the simp sons 틀딱)?
by waazazak September 19, 2016
Get the 틀딱 mug.