What is Paydirt?
1.
The dirt in which gold nuggets were uncovered via the panning process used during the California gold rush. Dirt and water were shoveled into large bowls and swished around as a quick way to find gold nuggets.
"Ah ha! Paydirt" - Tyler from the movie/book "Fight Club"
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2.
A football term describing the endzone of the football field. Also: a touchdown.
"He ran twenty yards for paydirt."
or
"They moved the football efficiently to reach paydirt."
See