dumbity

A term or street slang used to describe stupidity.

I lost my wallet because of my dumbity.

by erickss April 20, 2007

dumbitis

A disease in to where a person is diagnosed with the dumb

Im sorry ma’am, your son suffers from dumbitis

by Kawaii trash:3 June 5, 2020

dumbitious

Trying your hardest to be or appear dumb, whether intentionally or unintentionally.

Liam: I hear someone said they has an IQ of 175 from an internet IQ test.
Josh: He's so dumbitious.

by random1234567890 March 12, 2009