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
3
the 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
