Pant Full of Bone Share definition Flag A rock-hard schlong cooped up inside one's pants. PFOB, for short. I've got a pant full of bone right now...I can't wait to impregnate your mouth. Pant Full of Bone by Banana Stand April 2, 2013 0 0 Get merch Get the Pant Full of Bone mug. Buy Now — $32.95 See more merch