1 definition by Klaustifer van shulifet

used to describe someone who has made an intelligent comment or is simply very intelligent/sharp.
Gumbo: Holy crap i just performed cold fusion! And I'm only 3!!

Amazed bystander: You sir are going to be... the sharpest cookie in the barn....
by Klaustifer van shulifet July 21, 2009
Get the Sharpest cookie in the barn mug.