Top Definition
A mythical vampire bat that sucked the rum out of drunken pirates as they lay passed out from a night of pillage. The myth goes that the bats were so drunk from the tainted blood they kept falling from the tree as they slept off their wild night.
Maurie, Dave and Steve were so infatuated with the legend of the rhumbat that they named their band "The Rhumbats" in it's honour
by b.cos June 12, 2009

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