| Clue | Source | Date |
|---|---|---|
| Enter en masse | Thomas Joseph | 18 Apr 2020 |
| Arrive en masse | Thomas Joseph | 21 Aug 2018 |
| Arrive copiously | LA Times Daily | 21 Jan 2017 |
| Flood the gates | ||
| Arrive en masse | ||
| Enter all at once | ||
| Enter en masse | ||
| Arrive by the thousands | ||
| Flood the entrances | ||
| Arrive rapidly, like fan mail | ||
| Enter, as a crowd | ||
| Arrive en masse. |