not pass (one's) lips
1. To not be said by one; to be kept a secret by one. Don't worry, your secret will not pass my lips if anyone asks.
2. To not be eaten or drunk by one. Alcohol hasn't passed my lips since I sobered up three years ago.
not pass your ˈlips
1 if words do not pass your lips, you say nothing
2 if food or drink does not pass your lips, you eat or drink nothing: He promised her that nothing would pass his lips before dinner.