Definitions
1.verbTo make a fizzing, popping sound."a crackling fire"
2.nounFat that, after roasting a joint, hardens and crispens.
3.nounThe crispy rind of roast pork.
4.nounThe making of small, sharp cracks or reports, frequently repeated."the bangs and cracklings of fireworks"
5.noun(usually in the plural) Food for dogs, made from the refuse of tallow melting.
6.nounThree stripes of velvet worn on the sleeves of students at St John's College, Cambridge.