have one too many

have one too many

To be intoxicated. If she thinks karaoke is a good idea, she's definitely had one too many.
See also: have, many, one
Farlex Dictionary of Idioms.

have one too many

 and have a few too many
Euph. to be drunk. He had one too many, and now he's throwing up. You'd better not drive. I think you've had a few too many.
See also: have, many, one
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

have one too many

become slightly drunk.
See also: have, many, one
Farlex Partner Idioms Dictionary
See also:
  • drive (one) out of office
  • force (one) out of office
  • force out of office
  • give (one) (one's) head
  • give head
  • give somebody their head
  • give someone their head
  • cooking for one
  • 1FTR
  • as one door closes, another opens