Someone who looks this up or just a man or animal that do unfavorable things seen as stupid or dumb.
"Vaccines are bad for you >:("
"You are a dumbass...>
An individual that has the name 'Kevin De Leon'
If you look to my left, you will see a fully automatic, belt fed clip rocket launcher
assualt glock 30 caliber super sniper anti tank rifle. I say this, because I am a complete dumbass
Dumbass is a guy named leon like any guy named leon
Leon is a Dumbass
Anybody who searches up this word on urban dictionary
Fred: oOoOhH hEhE wHaT iF i sEaRcH uP dUmBaSs On uRbAn dIcKsHiOnArY
Bill: 1: it makes you a dumbass
2: u spelt that wrong fucking retard
When an asshole tries to act smart but fails at it
Jack: “You think you’re smarter than me?”
Me:”Of course dumbass!”
Some who thinks they are having a heart attack from smoking weed