What does FIO mean?

Figure it out

FIO

Other definitions of FIO:

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How to use the term FIO:

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More slang terms:

FO

FO

fuck off

MMORPG

MMORPG

massively multiplayer online role-playing game - referring to a computer game that connects sometimes millions of players to an online gaming platform / community.

FGI

FGI

Fucking Google It