Someone who spends an hour writing a three paragraph essay about how people with their name are amazing people to have some self relevance and to egg up their ego.
Yeah, Sam, The Dumbass spent a hour the other day writing his name onto urban dictonary.
dumbass can also be used as a joke, don't take it personally, because if you take it personally you are really petty af. LMAOOO
anyways you're a dumbass (hehehe)
best friends talking to each other. one makes a joke. the other one doesn't get .*2 hours later * the other girl gets the joke. the girl who made the joke" bruh your a dumbass" both start laughing