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A noun used to represent dumb or slow people. Also can be used as an adjective.
"You are a serious dumby."
"Hey you dumby jerk, why are you taking my car?"
dumby by $tefen September 2, 2006
A portmanteau of the words dumb and dummy.
Can describe someone who is stupid, jokingly or not.
ur a dumby!
dumby by GrillSalt May 13, 2016
A verb meaning "very", the preppy version of the term dumb.
I was dumby tired during math class, so I fell asleep.
dumby by KissTheStars December 9, 2008
She is stupid and looks like a hoe. What a dumby
Dumby by CaptainEnglish October 31, 2018
Have You Seen That Dumby Walking Around Not Knowing Anything
Dumby by Mikeeppsbaby January 25, 2019
A “Dumby” is a dumb person who can’t spell “dummy” right and ends up embarrassing themselves.
Sarah 6:23pm Your a dumby Jacob!
It’s spelled dummy* you idiot. Jacob 6:24pm
Dumby by MortyUpNext October 19, 2020