PTSB Share definition Flag Post Traumatic Stress Bullshit. "I was raped when I was a fetus. My Shrink has diagnosed my condition as PTSB. { Will need life long therapy}. Thank God I have disability"! PTSB by Shrink67 November 10, 2013 0 0 Get merch Get the PTSB mug. Buy Now — $32.95 See more merch