| Clue | Source | Date |
|---|---|---|
| "Toughen up!" | Universal | 29 Jul 2024 |
| “Stop being so cowardly!” | Wall Street Journal | 16 Dec 2023 |
| "Stop being so cowardly!" | ||
| "Don't be so chicken!" | Universal | 13 Mar 2023 |
| 'Show some courage!' ... as this puzzle's theme can do? | New York Times | 17 Nov 2020 |
| 'Toughen up!' | The Chronicle of Higher Education | 31 Mar 2017 |
| "Toughen up!" |