unphlavamable Share definition Flag (un-flav-a-mu-ble) Noun, 1.Unbelievable,Bullshit, unfair 1. That is Unphlavamable!!! 2. That was an unphlavamable advantage. unphlavamable by huttmunkkeeeys May 15, 2009 0 0 Get merch Get the unphlavamable mug. Buy Now — $32.95 See more merch