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Someone who is so manly and macho that others will class them as a 100% beefcake.
Person 1: My aim in life is to go to the gym and become a proper Louis.J

Person 2: What's a Louis.J?

Person 1: Basically I want to become so manly that people will see me as a beefcake.
by CrAcK-A-jOkE September 16, 2012
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