Common misspelling of the word dummy, almost always used by the people who can easily be described by the word itself. Just because dumb has a "b" at the end, does not mean dummy has to. Also, dummy does not rhyme with Gumby.
"You are such a dumby!" -Lauren, Monica, etc...
"Actually, you are the dummy!" -Brandon
by Crunk Dizzle September 29, 2006
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thick and voluptuous; a short term for dumby thick
Person 1: danggggg bonquisha looking dumby in that dress

Person 2: helllll yeahhh
by theceo_ofswag77 November 17, 2019
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joe wilson is a dumby because he had a chance to date the hottest/nicest girl in school, but he blew it because he is a dumby
by jayfelice December 24, 2003
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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?"
by $tefen September 2, 2006
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A portmanteau of the words dumb and dummy.
Can describe someone who is stupid, jokingly or not.
ur a dumby!
by GrillSalt May 13, 2016
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A verb meaning "very", the preppy version of the term dumb.
I was dumby tired during math class, so I fell asleep.
by KissTheStars December 10, 2006
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