Brightest tool in the shed
When someone fucks up ither telling someone they arent the sharpest tool in the shed or the brightest lightbulb in the box
Example:
Stupid Ass Friend: Hey, you're not the brightest tool in the shed are you! LOL
Me: Stupid fuck
Stupid Ass Friend: Hey, you're not the brightest tool in the shed are you! LOL
Me: Stupid fuck