B.F.: Before Floof, sometimes referred to as Before Feline; a.k.a. B.C.: Before Cat (catfinition) – the period of time in someone’s life before a feline starts living with them. The use of B.F. has grown in recent years because of the confusion that arises from Before Christ (B.C.) commonly applied to years in some dating systems.
In use: “B.F., he slept through the night without disturbance, and walked through the house in the dark without fear of stepping on a sleeping animal or their gifts. It all changed A.F.”