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A meaningless phrase, started by a retired Minecraft modder (The founder of the IndustrialCraft mod)
Mostly the word is used as a "filler" word to break silences, as a greeting or a goodbye.
"Hi John, how are you?"
-"I'm fine.. How are you?"
"I'm good.. HAYO!"
by Appels_NL December 17, 2014
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