Burnt Brown Crunchy Bits
The favorite food of His Grace, the Duke of Ankh, these remembrances of meals past found their highest expression in the fryers at Harga's House Of Ribs. His Grace was very annoyed when Sham Harga cleaned out the chippers before a coronation celebration. Burnt Brown Crunchy Bits, fat, starch and sugar are the four major food groups according to many men in Ankh-Morpork.
On a far larger scale, BCB's are a constituent of the legendary fat strata in Überwald, where the Fifth Elephant finally came to its graveyard many aeons ago. Here the term relates to entire mammoths, bison, bears, elk, etc. that were flame-grilled by the impact of the elephant.