| Clue | Source | Date |
|---|---|---|
| Extremely crowded space, slangily | Universal | 07 Sep 2024 |
| Rush hour metaphor | LA Times Daily | 16 Apr 2022 |
| Rush hour metaphor | ||
| Cramped quarters, colloquially | ||
| Cramped quarters, colloquially | ||
| Metaphorical tight spot | Wall Street Journal | 01 Apr 2017 |
| Metaphor for density | Newsday | 05 Nov 2016 |
| Subway car during rush hour, seemingly | New York Times | 23 Jan 2016 |
| Subway car during rush hour, seemingly | ||
| Cramped locale, slangily | ||
| Cramped spot, slangily | ||
| Cramped locale | ||
| Tight spot |