#2f

What does "2f" mean?
2_FREEDOM, 24HourFitness, 21DayFix, 24HrFitness, 24TopFit, 2AasFuck, 2ndFridays, 2016_festival, 2ndgen_fbodies, 2ShotFotografia, 24mmF18, 2xl_furniture, 2200uF, 2dayFM, 2EnvisionFitness, 24hrFitness, 24thFloor, 25DoctorsFact, 2h_français, 2ndFam, 237FootballFan, 2_frogs, 24StundenFilme, 27FrozenFood, 27th_fox, 29IsFine, 20160506_FRI, 2kFollowers, 2ndFalls, 2ndFamily

2f-2 7795 2f-x 7354 2f-ab4u 105094 2f-or2 47767 2f-or1 91149 2f-ast2f-urious 72397 2f-ast 19340 2f-ab4ana 165906 2f-ace 34035 2f-unny 54003 2f-ab4you 15278 2f-aced 14968 2f-ast4u 10203 2f-ast2soon 12313 2f-amilia 11467 2f-or1drinks 9023 2f-rochicks 5136 2f-ab4maps 1188 2f-asecdaplt 1231 2f-kfamily 2358 2f-or1kicks 2883 2f-ashion shop 5169 2f-r3sh 2343 2f-our7crew 1181 2f-lukefamily 1989 2f-lying 387 2f-our7legion 1180 2f-asedotw 779 2f-our7elite 1166 2f-illes1chroniquegiveaways 169 2f-abbtqga1 342 2f-alun 881 동대문롯데피트인2f- 101 2f-asetmx 131 2f-lye 137 2f-ab4ugiveaway 213 2f-asedoptd 83 2f-ishbowlsandhookahfor35 587 2f-asenost 386 2f-asemt 169