lardcore Share definition Flag adj. 1. (parody) A mispronunciation of the term "hardcore" now used to describe the morbidly obese. also "lardXcore" Oh. My. God. Sam Conners is SO lardcore. lardcore by Aryq November 17, 2006 0 0 Get merch Get the lardcore mug. Buy Now — $32.95 See more merch