It must have taken some guts to speak in front of that audience.
She doesn't take any nonsense from anyone—she's got guts.
1 more example
"Wha's good of living blind's a bat?" be demanded aggressively. "Thash what my wife said. An' she was right - only she's more guts than I have. When she found as the kids was blind too, what did she do? Took 'em into our bed with her and turned on the gas. Thash what she done. An' I hadn't the guts to stick with 'em. She's got pluck, my wife, more'n I have."1951, John Wyndham, The Day of the Triffids, Harmondsworth: Penguin Books, published 1954, page 24: