Pre Shower Shit Share definition Flag Shit you take before a shower, pre-shower ritual. Also the best time to take a shit. (P.S.S) "Hey bro I'm gonna go take a shower" "Don't forget to take your Pre Shower Shit" Pre Shower Shit by Dicked September 30, 2012 0 0 Get merch Get the Pre Shower Shit mug. Buy Now — $32.95 See more merch