on drugs
idiomPart ofdrug
on drugs — idiom
1. Under the influence of an illegal or recreational drug; behaving as if affected
1.idiom
Definition
Under the influence of an illegal or recreational drug; behaving as if affected by such a substance.
Example
The driver was acting strangely, and the police suspected he was on drugs.
You must be on drugs if you think that dangerous plan is a good idea.