Triviagasm: Set Your Bowel Disruptor To Explosive Diarrhea
http://io9.com/358446/set-your-bowel-disruptor-to-explosive-diarrhea
"...most famously in Transmetropolitan, where Spider Jerusalem carries a Bowel Disruptor that operates on the brown note principle. It even has settings from "diarrhea" to "prolapse.""