| Clue | Source | Date |
|---|---|---|
| Friendly greeting | LA Times Daily | 01 Dec 2018 |
| Friendly greeting | The Washington Post | 01 Dec 2018 |
| 'Yo!' | USA Today | 26 May 2018 |
| "Yo!" | ||
| Friendly greeting | ||
| Greeting that sounds vaguely creepy | ||
| "Psst!" | ||
| "Yo!" | ||
| Informal greeting | ||
| Attention getter | ||
| "Psst!" | ||
| From The Pajama Game | ||
| Hit song of 1954 |