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A mixture of rum and cola, normally premixed.
I downed a case of rumbo's last night
by JTN November 05, 2005
synonym for badass
Oh he's sucha rumbo!
by rizzlemcsizzle September 17, 2008
1.rumbo also knwon as rumbly, is the alernative word for sarcasm, used as the lowest form of humour,2. can also be used to describe the passing up of dinner for a smaller meal
1. was that being rumbo?
2. i dont want that chiken roast, i'll just make sandwich - stop doing a rumbo
by umbolina June 22, 2004