B.I.F is a graffiti crew in Sweden, known from the hiphop group "Looptroop", which apparently has members in it.
"You think I wrote B.I.F on Mac D without a reason" -Cos.m.i.c/Looptroop/Long arm of the Law
"Cosmic stayed home but BIF crew stay tight" -Looptroop/Ambush in the night
"but the story you tell do the letters i spell
s.h.i.t with the b.i.f c.r.e.w
love graffiti til death" -Looptroop/Illegal Commercials