| Clue | Source | Date |
|---|---|---|
| Back-breaking limit (3,4,5) | ||
| I can take no more of that wastrel's mess | Irish Times Crosaire | 10 May 2022 |
| One indignity too many | USA Today | 15 Dec 2019 |
| What breaks a camel's back, it's said | The Washington Post | 28 Nov 2016 |
| Proverbial backbreaker | ||
| Proverbial backbreaker for a camel | ||
| Proverbial backbreaker for a camel | ||
| Lightweight backbreaker? |