You fucking dumbass, literally anyone can make a definition here. To cite urban dictionary as a valid way to define words is just utter stupidity
John: Hey bro, I just bought a new NFT!
Bob: Why would you do that you dumbass
Idiots like u looking up dumbass in the dictionary are dumbasses
Don't be a dumbass
What your girlfriend is. In other words, the love of your life.
A person often from the "Generation Z" that commits quite unlawful, illegal and/or moronic actions. You can use this term when calling over a close acquaintance or a local associate.
Man 1- dumbass come here!
Close Acquaintance/local associate- What?