To be professional at something and be beast at it too.

Dude that guy is hella pro beast out on the football field.
by cujobaseball22 February 12, 2009
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The shorter and more commonly used version of the term "Pro Extreme Beast". Which means "What you say when describing something or someone that is amazing. It is usually shortened to just Pro Ex Beast."
"Wow that guy is Pro Ex Beast at Call of Duty." or "That kill cam was so Pro Ex Beast!!!"
by PRO xASSASSINx April 17, 2013
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What you say when describing something or someone that is amazing. It is usually shortened to just Pro Ex Beast.
Wow that guy is Pro Extreme Beast at Call of Duty. or That kill cam was so Pro Extreme Beast!!!
by PRO xASSASSINx April 17, 2013
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exceptionally awesome,
combination of 3 already well-used slang words
you stole a traffic cone? that's totally beast-pro-boner
by asdf+9874253 November 28, 2010
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