Definitions by black goku blade

dumbrain 

The word "dumbrain" is tossed around a lot but many people don't know the real meaning, the real meaning to this word is a callback to the "big brain" and "small brain" but what it means is someone who is a weird person or just a little joke.

Hey, I can't believe Bryson did that he's such a dumbrain

dumbrain by black goku blade February 17, 2021