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.""
Spider Jerusalem - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Spider_Jerusalem
"Spider's weapon of choice for most of the series is a handheld "bowel disruptor," ... with various settings ... ranging simple diarrhea to complete rectal prolapse.