voicepipe means A speaking tube. Lexicurio rates it Sui generis — a strength score of 86 out of 100.
Etymology
From voice + pipe.
noun
- A speaking tube.“But even as the fireball races both skywards and downwards, the mortally-wounded Major Francis Harvey, Royal Marines, crawls over to a voicepipe despite the loss of both legs and orders the magazines locked down and flooded. It's his last act on this Earth; his body will be found later, next to the voicepipe.”