Pressurised Squeaky Inflationists
The Pressurised Squeaky Inflationists (or PSI) is a Steam group that caters to the inflation section of the furry fandom. They operate Minecraft and Team Fortress 2 game servers, and a Ventrilo chat server.
The group's name is a backronym of PSI - or "pounds per square inch" - a unit of pressure.
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