Definition
A sarcastic way of saying someone is not particularly bright or quick-witted. It's the verbal equivalent of a dull blade—blunt and ineffective.
Example Usage
He thought Australia was a country in Europe; that guy's sharp like a rock.
Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=sharp%20like%20a%20rock&defid=292269)
Related Terms
Translate This Term
See “sharp like a rock” in Corporate Speak, Gen-Z Slang, Pirate Speak, and more.
Try the Translator