An acronym standing for “proud of you, boy” used primarily amongst based patriotic Americans and other westerners (or pro-western cultural groups), to denote support for patriotic behaviours in one or more males (ranging from tweets, to military service, to merely standing up to a bully). The female version of this saying is of course P.O.Y.G. or “proud of you, girl”, and is usually used to denote support for domestic behaviours in one or more females (anything to do with traditional housewifery).
ex1. “Thank you for helping us defend our rights, brother! P.O.Y.B.!”

ex2. “Wow! Rufio Panman is a true hero, isn’t he? POYB!”
by CanuckAmokTO August 23, 2020
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