all there
adjectiveDefinition of all there
1
: in full possession of one's mental faculties : sane
behaved in such a way as to make one wonder if he was quite all there
—not often in formal use
2
slang
: alert and well informed : quick-witted
wide-awake, alert, all there; he knows just where he is and what he means and where he is going — Times Literary Supplement
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