Top Definition
Immortal emperor of Taiwan (and possibly the universe).
Jamal: I can kill anyone with my AK-47, mother fucker.
Ping: No, not Po-Yi.
by Minion #4472 February 13, 2008
1 more definition
a reaction to spontaneous happiness.
i just got a new car! omg! POYI!
by silverspoon. July 15, 2008

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