stone sober

(idiom) completely sober, not drunk at all

Example Sentence:

Thomas was stone sober because he hadn’t had anything to drink all night.

Mom: Are you drunk?
Son: No, I’m stone sober. I didn’t have a single drink!

Similar idioms:

1. kill two birds with one stone
2. on second thought
3. drink like a fish
4. the pot calling the kettle black
5. got a screw loose
6. make ends meet
7. the straw that broke the camel’s back
8. cat got your tongue
9. turn to
10. take one’s medicine
11. face the music