Definition of big one
1 informal : a thousand dollars The house in the background, we bought it for 70 grand in 1967, it would go for two hundred big ones now, easy … — John Updike
2 informal : an extravagant lie : whopper Talking about lying, I thought, I had just told a big one. — Elizabeth Chandler
3the big one or less commonly the Big One : an extremely large and destructive earthquake … the prediction that the Big One may come in December is triggering tremors up and down the Mississippi Valley. — Michael J. McCarthy
First Known Use of big one
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