American Heritage® Dictionary of the English Language, Fourth Edition
- n. Earth, ore, or gravel that is profitable to mine.
- n. Informal A useful or profitable discovery or venture.
- n. mining Earth which contains profitable quantities of ore.
- n. figuratively A profitable area or period; success.
GNU Webster's 1913
- n. (Mining), [Western U.S.] earth which yields a profit to the miner.
- (Mining), Western U. S. Earth, rock, etc., which yields a profit to the miner.
- a discovery, especially after an exploratory process, which yields a profit or sought-after benefit; -- used especially in the phrase “to hit pay dirt”.
- n. a profitable success
- n. ore that yields a substantial profit to the miner
“After three irate hang-ups, she struck pay dirt on the fourth call.”
“She struck pay dirt one night, finding Forever Amber, and reading it in Saturday-night installments, always careful to slide it back into the closed china closet when she heard the Evanses’ car come up the driveway.”
Looking for tweets for pay dirt.