Dictionary
Words, grammatical forms and meanings linked to the ontology.
smart as a whip en · ADJ
Pronunciation
Meanings
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(idiomatic, not-comparable, qualifier:simile) Very intelligent.
He's a smart chap, though ——smart as a whip, and knows a horse, too. Takes after his uncle Hod there; and Hod's a deal smarter than Seth, if he'd only stick to something, or go in with somebody that would furnish the stick for him.
1883 November 22, “Her Thanksgiving”, in The Youth's Companion, volume 56, number 47:
Synonyms
whip-smart · sharp as a tack