Top Definition
Katy Perry Threads originated from the Guitar Hero Community.
It happens when someone makes a topic that is so stupid that the rest of the community members hijack it and turn into a Katy Perry picture-posting thread until it gets locked.
It happens mostly around the time when a new GH title is about to be released.
Noob: "Hey guys, we really need more true Heavy Metal bands in GH like Disturbed and Bullet For My Valentine!"

Member 1: "Katy Perry Thread?"

Member 2: *Katy Perry picture*

Member 3: *Katy Perry picture*

ann37ash: *Locks thread*
by Bitter asshole August 31, 2010

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