Dumber than a box of rocks 

Anyone who needs this definition. I mean, it’s stated in the name. Dumber than a box of rocks refers to people who are cocky, but extremely dumb.

“How many planets in our solar system are there?”
“I think like… 17? Yeah.”
“Holy crap, they’re dumber than a box of rocks!”

Dumber than a box of rocks by EmoMediocreBoi April 19, 2022

Dumber than a box of rocks 

Extremely dumb.

My friend has a few goldfish. They're dumber than a box of rocks, she says as they NEVER stop eating!

Dumber than a box of rocks by Caramelcoatedrabbit19 May 12, 2022

dumber than a box of retarded rocks

When being compared to a box of rocks would be an insult to rocks everywhere.

When being compared to retards would be an insult to retards everywhere.

Dude, you are dumber than a box of retarded rocks.

dumber than a box of retarded rocks by RabbiRob July 2, 2006