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1.
Federation is a Yay area hip hop/rap group. Theyre that one that popularized hyphy, even tho keak da sneak used it first, it wasnt big until federation an e40 made it like that. They got some good shit out there so go check up on it an see if u like it.
Up here in tha Yay we be kickin it an gettin hyphy ta some Federation shit. yeah...
by whothafuckgiveashit July 23, 2006
 
2.
An organization formed by merging many groups or a union of political organizations. Having many provinces or areas join but have management of themselves
Russia is a federation

A federation would be like America, if all of the states governed themselves
by Alex14 July 03, 2006