A conglomeration and equalization of the many Beat a furry, and Hug a furry days
3F stands for:
Fight - to attack furries
Flirt - to care for furries
Flight - to run
From November 27 to December 4 You may either beat or hug a furry, though there will be consequences.
If you are to beat a furry/furries, you MUST hug that furry/furries as soon as midnight strikes, the more you attack the furries the longer you will have to hug them.
But, if you are to only hug furries, you WILL become a viable target and other non-furries shall now be allowed to beat you too, you may fight back, but you will probably be overpowered.
If you do not want to suffer any of these consequences, you have the option to simply run away and not participate for the whole week.
A: Why did you buy a hazmat suit?
B: Because it's nearly 3F FURRY WEEK! And I do not want to interact with those people.
A: Oh.