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Also referred to as "2 Da Max" and "Extreme Ish". Can be part of getting "Caked". Anything involving intense effort and buckwild mentality. Generally includes massive supplementation of pre-workout products especially insane combinations that aren't intended for general consumption.
This guy is beasting it up at the gym!
Beasting it up while playing basketball at the Cham village!
by LiberalMuslim February 27, 2011
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