What is Postfu?
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1. "Pics Or Shut The F*ck Up". Used on message boards to mean that the author is talking about something that requires visual evidence that should either be produced or the matter should be dropped.
"I met this hot chick over at the bar last night."
"C'mon, POSTFU."
See
Random Words:
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A Term You use to Someone who wants to Argue or Fight with You in a Online Chatroom/Message Board
"OMG..Look at this dude...He wan..