Top definition
A person who has an unnecessary amount of body fat (flab). Most Flabbadactyls have wing-like flubber hanging from their arms.
Person 1: Ew look at that guy's flab!
Person 2: He could be a Flabbadactyl!

Person 1: Eww Kirstie Alley is-
Person 2: A FLABBADACTYL!
by Dinoflab June 13, 2011
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