HSMHIATEOMA Share definition Flag Acronym for "Holy Shit My Heart Is About To Explode Out My Ass" <Person finishes watching episode one of Elfen Lied> Person: "HSMHIATEOMA" HSMHIATEOMA by RePod37 April 25, 2010 0 0 Get merch Get the HSMHIATEOMA mug. Buy Now — $32.95 See more merch