Top Definition
Someone who's extremely adept in a particular field.
Derived from the word 'Pro'(Proffesional).

Pronounced as : "Peh-roo"
Gaming :
"OMG! Head shot! Peroo man, peroo."

Somewhere else :
A: He had a perfect score in both SAT I&II.
B: He's a god damn peroo, I say.

by axegee December 06, 2008
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