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A type of person, usually male, who is more concerned about their image than a 13 year old girl and gives up their life to weight lifting, dieting and exercising excessively, much more than is necessary to be a healthy person. Despite this, they largely ignore cardio exercise, and as a result can only run a single 10 minute mile before collapsing.
Bro 1:
"Bro what you doing today bro?"

Bro 2
"Bro Imma go lift for 5 hous bro, imma get those gains with my swaggity proteincarbextraleancreatinetonecomplexformulababybottle."

Regular guy:
"Wow, they are such lift bros."
by Waboba Pro December 17, 2014
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