off (one's) face
Very intoxicated from drugs or alcohol. You were really off your face last night! How do you feel this morning? A: "Do you remember anything you said to me at the party?" "B: "Not at all—I was off my face that night."
off your face
very drunk or under the influence of illegal drugs. informal 1998 Times Magazine I've been accused of being off my face many times but you just go, by osmosis, with the people that you're with.