Top Definition
A Super Hero, constructed from a deflated green balloon. His friends include Disco Beano, and Flabby Beano. He unfortunately met his end by being thrown into a sink, and later into a garbage can.
"I just constructed a replicant of Mumbo Beano, with this balloon"

by Taraz Bulba March 31, 2009
6 Words related to Mumbo Beano

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