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.
by Crunk Dizzle September 29, 2006
by theceo_ofswag77 November 17, 2019
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
by $tefen September 02, 2006
Get the dumby mug.
by KissTheStars December 10, 2006