1 definition by morningaftershow

Top Definition
An extremely cheap rum, used for two purposes:

1) Keeping it classy.
2) Making it unclassy.

Mr. Boston is best enjoyed with a monocle and tophat.
I bought 3 bottles of Mr. Boston for the same price as Parrot Bay and got just as drunk.
by morningaftershow July 12, 2010

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