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A friendly term for Dumb-Ass
pronounced dumb+us
Adrian never understands our comments, he's a bit of a dumbas at times.
Dumbas by missma May 7, 2010
A: You're a dumbas!
B: Did you mean dumbass? Lol dumbass!
A: HA! Now you seem like an ever bigger dumbas.
dumbas by keeg12345678910 December 18, 2020
FATI SPELLED DUMBASS WRONG, YOU DUMBAS
dumbas by SMDER June 7, 2021

Maximus Dumbas 

(Noun) Anyone whose name is max
That man over there is a very big Maximus Dumbas
Maximus Dumbas by furriesrgay January 22, 2022

Urban Dictionary Dumbass 

Someone who writes Urban Dictionary definitions about themselves, or people who they know, but who are not famous. Esp. when those definition is "*insert name here* is very cool and attractive."
Person 1: Hey! Jeremiah defined himself on Urban Dictionary!
Person 2: What an Urban Dictionary Dumbass...