#fffb

What does "fffb" mean?
followForFollowBack, FollowForFollowBack, FollowForFollowBlack, Filp_filp_filp_back

fffb-ack 8644 fffb-log 3245 fffb-ts 932 fffb-ox 834 fffb-a 237 fffb-16 632 fffb-yjulie 206 fffb-15 90 fffb-unbury 177 fffb-ackmyb 148 fffb-ook2016 168 fffb-ackalways 146 fffb-rand 69 fffb-ikinifit 132 fffb-yeo 74 fffb-aguio 60 fffb-ycandy 81 fffb-ackasap 90 fffb-estella 69 fffb-rynn 44 fffb-londe 50 fffb-irds 35 fffb-fffy 32 fffb-eachtrip 51 fffb-arcelona 51 fffb-adeditsxox 36