diabulious 

No one knows what it means but Ryan still uses it anyway

“Wtf is a diabulious”

diabulious by Lapford Mafia October 31, 2020

Dubulous 

A word meaning suspicious, questionable, sinister, or even possibly harmful

Kevin, man, this milk's looking downright dubulous, is it expired?

Dubulous by AJ Crow June 29, 2023