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1.
The act of someone (usually a group of people) pushing the boundaries to have excessive fun. Gettin' down typically includes a wild scene of drinking, drugs, music, partying, sex, or any combination of the above.
Christian: Dude, there were at least 50 people here dancing to loud music till 6a.m. and most of us were pretty messed up.
Dave: Yeah, we were definately gettin' down.

Ted: You gettin' down tonight?
Jeff: Hell yeah! I'm eating a few X pills and going to watch that DJ.
by monstadub June 06, 2010