smart as a whip

Very intelligent or clever, as in Little Brian is smart as a whip; he's only three and already learning to read. This simile alludes to the sharp crack of a whip. [Mid-1900s] Also see mind like a steel trap.

Common Names:

Name	Pronounced	Usage
Galen	GAY-lən	English
Raffael	RAH-fah-el	German
Dorota	daw-RAW-tah (Polish)	Polish, Czech, Slovak
Evelien	ay-və-LEEN	Dutch
Sayaka	sah-yah-kah	Japanese
Tonino	-	Italian