j99barker's definitions
Person 1: He's not the sharpest tool in the shed.
Person 2: Not the sharpest? He's as sharp as a marble.
Person 2: Not the sharpest? He's as sharp as a marble.
by j99barker June 29, 2016
Get the Sharp as a Marblemug. 
Get the Sharp as a Marblemug.