not fun at all, not even in retrospect. As in, “What the hell was I thinking? If I ever even consider doing that again, somebody slap some sense into me.”
That was type 3 fun!
by Apothegm September 24, 2014
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Also known as Type 3 Fun, Category 3 Fun is a type of fun that is not fun at all and not fun in retrospect.

This term is normally used in relation to video games.
JARED: Wow you play War Thunder, good luck with your Category 3 Fun.
by 2theMAX the Stair Fax June 27, 2021
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