Bifflerette Share definition Flag An amazing girl that is very close to you. Somebody that you can trust on. Most commonly, a very pretty girl. So i have this friend, shes been my Bifflerette for many years. I love her. Bifflerette by Deniss January 2, 2009 0 0 Get merch Get the Bifflerette mug. Buy Now — $32.95 See more merch