[usually with negative] informal In full possession of one’s mental faculties: he’s not quite all there
More example sentences
- There's another wee guy who was not quite all there and he used to go into the record shop and ask for Elvis' latest hit.
- You're not all there are you Mike? You should think seriously about getting some professional help.
- He stalks this girl he's in love with, but he's not all there.
Definition of all there in:
- The US English dictionary