这人嘴很贱
[zhè rén zuĭ hĕn jiàn]
Literally meaning 'This guy has a wicked mouth,' it means the person sometimes speaks out boldly but not necessarily offends others or is disrespectful. It also shows that he might enjoy making sarcastic remarks, cracking jokes and being somewhat naughty. People often use the words “cheap,”“shameless” to describe those who can chat fluently or make people laugh at any time and place.