#ffu

What does "ffu" mean?
FollowForUpdates, FightingForUs, FitFamUK, FightingFitUK, FashionFairUK, Fc_FilleniuM_Ua, FashionFeminineUnique, FitFamUk, FiaFriendsUdda, FreshFactoryUk, FashionFeverUAE, FratFitU, FotograFiaUnited, FemaleFilmmakersUnite, follow_for_updates, fleur_for_u