Hypersonic Plumbing

noun: the waterworks of a toilet system in which the water and waste move at speeds in excess of Mach 5 (five times the speed of sound, or about 3800 mph).

When I first read this phrase on a friend's notebook, I thought it was a fantastic idea. Our teacher had been talking about hypersonic flow, and then had moved on to plumbing. By combining these, had he created one of the next great engineering breakthroughs, or an all-conquering ball-sucking aquatic demon of terror?

Don't flush while you sit.

I think I'm siding with "horrific instrument of torture."