MCR Fans- What could L.B.C.B. stand for?

I went to a My Chem concert the other night and got a signed guitar pick with the Fun Ghoul logo on it. On the back it says L.B.C.B. in a heart and I cannot figure out what that stands for! I've asked a couple places and all I've gotten is either 'Love By Chemical Brothers' or Lily and Cherry (Frank's kids) but then where do the B's come from? What do you think?