sewergas

noun
UK /ˈsuːəɡæs/
US /ˈsuːərɡæs/

A smelly gas that comes from dirty water in underground pipes.

The workers wore masks because sewergas filled the tunnel.


OTHER MEANINGS

2. A bad smell rising from drains in a building.

A whiff of sewergas came up from the kitchen sink.

3. Gas produced by rotting waste in sewers, which can be dangerous.

Sewergas can build up and become explosive if it is not vented.

4. Informal term for something unpleasant or of low quality.

That movie was pure sewergas, in my opinion.