A genuine Idiot, usually a person not thinking straight, or has no idea what they're doing.
Dumbass is a word people would cal someone else if they are stupid or do stupid things. dumbass is classified as a bad word from many parents and many uptight kids.
You;
A retard who sits on his ass all day looking up random ass words on the urban dictionary jacking off all day to these shithole definitions.
Jimmy; “Hey dumbass!”
You; “I’m not a dumbass!”
Jimmy; “Yes you are, Dipshit!”
If someone just looks the word up then your a dumbass !!!! It explains everything
Joe :your a dumbass
Bill: ok your a cunt
A person is both stupid (e.g. dumb) while also stubbornly refusing to stop being stupid when asked (e.g. Will Tomasini)
I couldn't teach him how to use the paintball gun because he was running around with it between his legs like a dumbass.
someone who searches dumbass on urban dictionary
person: I searched dumbass on the urban dictionary and now im a dumbass