방약무인傍若無人 (곁 방, 같을 약, 없을 무, 사람 인)
bangyangmuin
ENpretending like you are in your private living room in public, which means, you ignore the (bad) impression you are making on others
bangyangmuin
ENpretending like you are in your private living room in public, which means, you ignore the (bad) impression you are making on others