A person whom instantly shuts down any party or the attempt thereof. A true Katten may also strictly oppose, prevent, or shut down any other fun activity.
Bjarne: Are you up for a party tonight?
Espen Reidar: Sure, as long as Katten doesn't show up and ruin the party.
Bjarne: This party is the greatest.
Espen Reidar: Wtf, Katten just arrived and killed our party.
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