The Collaborative International Dictionary of English v.0.48:

Scrapple \Scrap"ple\, n. [Dim. of scrap.]
   An article of food made by boiling together bits or scraps of
   meat, usually pork, and flour or Indian meal.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

scrapple
    n 1: scraps of meat (usually pork) boiled with cornmeal and
         shaped into loaves for slicing and frying

Moby Thesaurus II by Grady Ward, 1.0:

22 Moby Thesaurus words for "scrapple":
   aspic, barbecue, boiled meat, bouilli, civet, flesh, forcemeat,
   game, hachis, hash, jerky, joint, jugged hare, meat, menue viande,
   mince, pemmican, pot roast, roast, sausage meat, venison, viande