Meaning of gravy

(noun) a sauce made by adding stock, flour, or other ingredients to the juice and fat that drips from cooking meats

the seasoned but not thickened juices that drip from cooking meats; often a little water is added

a sudden happening that brings good fortune (as a sudden opportunity to make money); "the demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed like an assembly line"