shittahrea Share definition Flag meaning something disgusting. such as a combination of shit, and diarrhea. developed in may 19,2011. by Gerardo Morales & David Castillo. 1.dude you smell like shittahrea. 2.your face looks like shittahrea. shittahrea by D.C & G.M June 21, 2011 0 0 Get merch Get the shittahrea mug. Buy Now — $32.95 See more merch