Top Definition
The name of a fresh northeastern ska/funk band whose name originated in a math class after "rational fuctions" was abbreviated to "rational func", and eventually to "Rational Funk". After years spent in music class and a day of learning about "rational fuctions", the northeastern ska band Rational Funk was born. Known for their funky cover of "American the Beautiful", renamed "American the Beauti-funk", and also their other patriotic funk-covers.
Dude, have you listened to Rational Funk play in the band room? They're so funkin' awesome!
by dspike50 January 04, 2010

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