没分寸

没分寸

Literally means:

have no sense of propriety

Actually means:

go too far

分寸 refers to the proportion or criterion one is supposed to know to speak and behave properly. This phrase means having so sense of propriety or going too far in speech and action. Derogatory.

分寸，说话做事应该掌握的尺度或标准。说话做事过分或过火。具有贬义色彩。