standing room
nounUK /ˈstændɪŋ ruːm/
US /ˈstændɪŋ ruːm/
Standing room is space where people can stand when all the seats are full.
The concert was so crowded that there was only standing room left.
OTHER MEANINGS
2. Space in a stadium or theater for people who must stand rather than sit.
The stadium added standing room for the big match.
3. A place or area where a person can stand comfortably.
There was barely standing room in the tiny elevator.
4. The condition of being so crowded that people must stand.
By noon the market was standing room only.