gravy -- (a sauce made by adding stock, flour, or other ingredients to the juice and fat that drips from cooking meats)
gravy, pan gravy -- (the seasoned but not thickened juices that drip from cooking meats; often a little water is added)
boom, bonanza, gold rush, gravy, godsend, manna from heaven, windfall, bunce -- (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")