"gravy" in the noun sense
a sauce made by adding stock, flour, or other ingredients to the juice and fat that drips from cooking meats
2. gravy, pan gravy
the seasoned but not thickened juices that drip from cooking meats often a little water is added
3. 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"
Source: WordNet® (An amazing lexical database of English)
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