Smart as a whip

Meaning

Used to describe someone who is exceptionally intelligent, sharp, or quick-witted. It suggests someone who learns fast and thinks clearly.

Complimentary, warm

Used in a sentence

• She is only five, but that girl is smart as a whip.
• You should talk to Mark about the issue; he is smart as a whip.
• He was smart as a whip and finished the test in half the allotted time.