aquashit Share definition Flag going way downstream or into the middle of a lake to take a huge dump during camping. "Man i had to shit so bad last night, I aquashitted (past tense)" "Damn i hope you went far away from camp!" aquashit by no, you. April 23, 2014 0 0 Get merch Get the aquashit mug. Buy Now — $32.95 See more merch