Top Definition
A humorous term that Barnaby Tucker (from the musical Hello, Dolly!) often says when he is surprised or excited.
Cornelius: Come on, Barnaby! We're going to New York! Elevated trains, Barnaby! The lights of Broadway!

Barnaby: Holy cabooses!
by ccl2010 March 28, 2009
6 Words related to Holy Cabooses!

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