disbefuckinlief Share definition Flag when you go into shock because your teacher said something totally not school apropriate. AND they get it. "I can't believe my apush teacher just said a "thats what she said joke" , I'm in disbefuckinlief!" disbefuckinlief by the backstreet boys October 21, 2012 0 0 Get merch Get the disbefuckinlief mug. Buy Now — $32.95 See more merch