Cracklings

noun

1. Fat that, after roasting a joint, hardens and crispens.
2. The crispy rind of roast pork.
3. The making of small, sharp cracks or reports, frequently repeated.

   "the bangs and cracklings of fireworks"

4. (usually in the plural) Food for dogs, made from the refuse of tallow melting.
5. Three stripes of velvet worn on the sleeves of students at St John's College, Cambridge.