big one

American  

noun

Slang.

1. a one-thousand-dollar bill or the sum of one thousand dollars.

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Etymology

Origin of big one

First recorded in 1955–60

Example Sentences

“This is the big one that we always feared would happen, it’s the black swan event,” said Cliff Cain, manager of commercial and external affairs at Pulsar, a helium exploration company with projects in Minnesota and Greenland.

From The Wall Street Journal

The catch, and it’s a big one, is that the show is entirely written by artificial intelligence.

From Salon

I think it was just about Manchester City winning trophies, which is what they've done so regularly recently - and this is another big one.

From BBC

They have not quite got there, so this is a big one for Arteta.

From BBC

While the gym isn't their main hangout, it's a big one, they admit.

From BBC