unbefuckinglievafuckingable Share definition Flag Used to describe something that is fucking-fucking-unbelievable. John Mccain isn't George Bush!?!? Unbefuckinglievafuckingable! unbefuckinglievafuckingable by B. Lopez December 9, 2008 0 0 Get merch Get the unbefuckinglievafuckingable mug. Buy Now — $32.95 See more merch