Top Definition
A Multi-Vitamin Supplement designed for bodybuilders and athletes made by Universal Nutrition. #1 selling Supplement in bodybuilding for the last 17 years since 2007 and consists of crazy ingredients such as Shark Cartilage and Ox bile. Many bodybuilders swear it makes a significant difference in lifting performance and protein synthesis and metabolism.
Shit! I forgot to take my animal pak, now my lifts gonna suck!!
by Tim Chaffin November 15, 2007

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