PBHS Share definition Flag Psycho Bitches High School: If a girl is acting crazy you say she went to PBHS. 1: Sheena locked me in her room after we boned and I had to break the window to get out.2: DAMN! She must be a PBHS alumni!! PBHS by PP3A May 30, 2009 0 0 Get merch Get the PBHS mug. Buy Now — $32.95 See more merch