Tapeworm day Share definition Flag A day when no matter how much you eat, you still feel hungry. "Dude, even though I have eaten 5 times today, I am still hungry. I must be having a tapeworm day!" Tapeworm day by Pkchops April 20, 2009 0 0 Get merch Get the Tapeworm day mug. Buy Now — $32.95 See more merch