| Clue | Source | Date |
|---|---|---|
| Fan that's unhappy | Newsday | 26 Oct 2024 |
| Giver of a Bronx cheer | USA Today | 30 Jul 2019 |
| Heckler | Universal | 04 May 2019 |
| Giver of a Bronx cheer | ||
| Heckler | ||
| Heckler, essentially | Universal | 27 Jan 2017 |
| Fan that's unhappy | ||
| Boo-bird, e.g. | ||
| Vocal opponent | ||
| One who heckles | ||
| One who scoffs | ||
| Heckler | ||
| One who hoots | ||
| "Boo bird" | ||
| Rude critic | ||
| One kind of baseball fan. | ||
| Scoffer. | ||
| Mocking one. |