(phrasal verb) to insult or to embarrass someone in public.
Definitions (粵典–words.hk)
動詞、俚語
令到一個人好冇面，名譽掃地 to harm someone's reputation; to shave someone's eyebrows
響我班𡃁面前say no，你而家擺到明剃我眼眉啫。
响我班𡃁面前say no，你而家摆到明剃我眼眉啫。
hoeng2 ngo5 baan1 leng1 min6 cin4 sei1 nou1, nei5 ji4 gaa1 baai2 dou3 ming4 tai3 ngo5 ngaan5 mei4 ze1. Saying no in front of my lackeys, you are obviously hurting my reputation.