- stream usage
- Used in city-builder game streams or IRL streams from urban locations
- emote mapping
- Custom emote in IRL or travel streams to represent subway or metro scenes
- chat meaning
- Spammed in chat when streamers visit metro stations or ride subways during IRL content
- clip context
- Clipped moments of streamers reacting to metro systems in different countries go viral
- subscriber context
- Low subscriber-specific relevance; occasionally used in transit or city-themed subscriber alerts