soil, gravel, or ore that can be mined profitably.
Informal. any source of success or wealth; a fortunate discovery or profitable venture: After months of experimentation, the scientists finally hit pay dirt.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use pay dirt in a sentence
He was back with the same offer in 2007, and again his investigator struck pay dirt.
They were down some forty feet and were drifting in, wheeling the pay-dirt down a series of planks placed on trestles to the dump.
In the morning our fire would be burned out, and enough pay-dirt thawed to keep us picking all day.
As the night was chilly I had brought along an old grey blanket, similar in colour to the mound of the pay-dirt.
So far we hadn't got pay-dirt, but their mining manager wanted us to drift in a little further.
Every hour for us meant so much more of that precious pay-dirt that lay under the frozen surface.
British Dictionary definitions for pay dirt
a deposit rich enough in minerals to be worth mining
strike pay dirt or hit pay dirt informal to achieve one's objective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012