A fork of Rural Dictionary
FFF, or forced family fun, is one when forced to do a "fun" activity by your family that you don't want to do. Families can also use FFF to attempt to paint the idea that the family is functioning. (In that case, it would be similar to faking it for the holidays.)
Person 1: "Wanna get coffee tomorrow?"
Person 2: "I can't, I have FFF."
Person 1: "Bless your stars."