tshhtf Share definition Flag Acronym for the English phrase "the shit has hit the fan", used for brevity, or to use in otherwise polite conversation. The zombies have surrounded the house, and we're out of bullets. Ya, TSHHTF. tshhtf by JWSmythe March 1, 2017 0 0 Get merch Get the tshhtf mug. Buy Now — $32.95 See more merch