Homo Idioticus 

A split group of Homo Sapiens that have evolved to have up to 80% less brain matter, thus greatly decreasing intelligence.

Bob: "How could Carl possibly be that dumb?"
Jake: "I think he is a Homo Idioticus."

Homo Idioticus by Jimothy A. Bonquavious April 7, 2022

idiotstick 

A stupid person. 'idiot' describes someone that is stupid, but adding '-stick' denotes that the person is as dumb as a stick.

You missed the field goal? an 18-yard attempt?! Fuckin' idiotstick.

idiotstick by Tengu March 31, 2005

idiotitus 

Someone that suffers from major idiocy! Major sufferers are blondes!

That blonde girl has idiotitus!

idiotitus by UWS No. 1 Germ Crew November 26, 2005

Idioptimist

Unreasonably and ridiculously optimistic in the face of all evidence to the contrary.

His team has been destroyed in their last 3 games, only an idioptimist would think they are going to the finals.

Idioptimist by Student72 July 3, 2019

idioticism 

the idea of the right to be idiotic

the boy along the shore was a fine believer in idioticism.

idioticism by lol3461461 June 1, 2022

Idiotiesm 

If you are so dumb you is this

Jd has idiotiesm

Idiotiesm by Idiotiesm May 28, 2019

Idiotics

The study of idiots

Town: Yo man I'm gonna go to idiotics class to study myself.

Random: Aight aight man hell yeah

Idiotics by Town#0001 on Discord November 18, 2019