from my friends!!  (as crazy as they are)
okay, here's the actual story: 
my first name is bethany, and one day i was talking about being fat because... well, i'm a hog. seriously, i suck down food like a hoover.  so my friends jokingly started calling me big fat bethany and making jokes all the time about how fat i was.  then it got turned into big fat befnee for some reason, then was shortened to b. fat befnee, then eventually it was left at just b.fat.  so that's the story of my name!  :D