EMFDYSI Share definition Flag Acronym for "English, motherfucker, do you speak it?!", a line from Pulp Fiction. Used on the Internet in response to nonsensical writing. Person A: "U C4N7 B337 MY 1337 5Kii15!!!!!!!!!! YA N00BS!!!!!" Person B: "EMFDYSI?!" EMFDYSI by Dasrik November 22, 2007 0 0 Get merch Get the EMFDYSI mug. Buy Now — $32.95 See more merch