not pass somebody's lipshumorous a) used to say that someone does not talk about something that is secret 〔秘密〕不会被某人吐露 Don’t worry. Not a word of this will pass my lips. 别担心,这件事我一个字也不会说出去。
b) used to say that someone does not eat or drink a particular thing 〔某东西〕不会被某人吃[喝] Not a drop of liquor has passed my lips. 我滴酒不沾。
→ not pass somebody’s lips at pass1(7)