dumbotronic 

when something is so dumb it needs to be emphasized

Katie: Hey guys, I saw a license plate that said "Oklahoma is OK!"

George: Man, you're dumbotronic

dumbotronic by Ymauerq March 15, 2008

Dumbotron 

Someone who is very dumb and/or has made a very dumb decision. Usually an exaggerated expression.

You're such a dumbotron, why would you take that shot?

Dumbotron by Andre2698 September 18, 2017

Dumbotron 

A large TV screen that messes up, usally said during schooling or professional meetings to add a bit of humor.

Alright Everyone look up at the Dumbotron.

What is this Dumbotron doing now.

Dumbotron by Bob Wats February 10, 2020

dumbotron 

A person who is foolish and brings rejection and embarrassment upon themselves in full view of their social group or the general public. This phrase was first coined by a nerd in Australia, and is a conjunctive of dumb and jumbotron.

"I am such a dumbotron, I got feelings for someone who doesn't want commitment from me."

dumbotron by Pidgie August 29, 2016