a juvenile code language that changes each syllable into two syllables, thusly, change the initial vowel in each syllable to a short u sound, and start the second syllable with a "b" and the remainder of the original syllable. Ubby dubby was popularized on the PBS kids show "Zoom" in the 70's.
"Chair" in ubby dubby is "chubair."
by Frank Booth January 4, 2005
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An awsome language spoke on ZOOM a little kids show on PBS. to speak it you just have to add "ub" before all the vowels that are pronounced.
ubi lubove tubo spubeak ububbubi dububbubi. (i love to speak ubbi dubbi)

ubit ubis rubealluby fubun (its is really fun)

wow that girl can speak ubbi dubbi... im so jealous
by jahozafat November 3, 2010
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A new Texas EDM Festival in Fort Worth at Panther Island Pavilion. Promo Code: TEXASEDMC saves you $5.
I can't wait to go to Ubbi Dubbi next year!
by Promo Code: TEXASEDMC November 13, 2018
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