Anaphyrexic Share definition Flag Someone who has so many alergies (anaphylaxis) that they cannot really eat anything, and develop an eating disorder (anorexia) "that kid is alergic to fish, nuts, wheat, fresh fruit, eggs and cheese. He's totally anaphyrexic." Anaphyrexic by JHIRSH September 27, 2009 0 0 Get merch Get the Anaphyrexic mug. Buy Now — $32.95 See more merch