noun. A bonkers-detecting device capable of identifying the pro-cocoa-puffs crowd, even in a crowd.
Real citation: "Between his views on abortion, the separation of church and state, and evolution, Paul earns three strikes on the batshit-o-meter. Thanks for playing and we have some lovely parting gifts."
(Dec. 18, 2007, unreasonable.org, http://unreasonable.org/node/1617)
Made-up citation: "We hope you enjoy the Apple Batshit-o-meter Nano. For best results, do not use in conditions of extreme cuckoo-ness, like death cults and Thanksgiving dinners."