under the influence
adjEtymology Elliptical, since the agent (any intoxicating substance) is implicit because it is understood in context.
1
Idiomatic Intoxicated or inebriated, in any degree from mildly impaired to stupefied, by a mind-altering substance, typically alcohol; thus, especially, drunk.
- He was arrested for driving while under the influence.
- He was fired for showing up when he was under the influence.