Sharp as a tack
Suggest a CorrectionMeaning
Very quick or smart, keen.
Origin
From 19th-century America, tied to tacks; sharp pins, slang by 1860s for wit. A 1865 'Harper's' uses it for a keen lad.
Usage Examples
- He's sharp as a tack; catches all.
- Sharp as a tack; she's quick.
- As sharp as a tack; smart kid.
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