What is Fko?
1.
Also known as "Fun Knock-Out". This social 'move' is executed unexpectedly and at the peak of a group's good time. Often times this move results in a complete loss of a good time or any fun being had (or to be had).
"We were five minutes out from seeing the movie when Scott gave us an FKO."
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A gigantic queef that expells moist chedder cheese from the vagina, instead of stinky hot air
Jeremy "Dude, my girlfriend made me ..
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when a girl is so hot, all you want to do is club her boyfriend to death, grab the girl by the hair and drag her into your room and proc..
