LMAOSMMCASIYEGM Share definition Flag "Laughing my ass off so much, my cock accidentally slips into your elderly grandmothers mouth." Gary: "but instead, he picked the fat one!!"Roger: "LMAOSMMCASIYEGM!!!!!!!!!!!!!!!!!" LMAOSMMCASIYEGM by thestrangercalledjoe March 29, 2010 0 0 Get merch Get the LMAOSMMCASIYEGM mug. Buy Now — $32.95 See more merch