demonomania the belief that one is possessed by evil spirits. go-devil a snake apparatus used to clear a pipe; a dart dropped down a shaft to detonate an emplaced explosive charge; a sled for dragging loads. bottle imp a Cartesian diver, also known as a Cartesian devil. sarcophile a flesh-eating creature, esp. the Tasmanian devil. hoodoo (geol.) a rock pillar, often fantastic in shape, formed by erosion; a similar pillar of earth. catface a defect in a finish coat of plaster. clapperclaw (arch.) to claw with the hand; to revile. hellgrammite a dobsonfly larva, often used as bait. decalcomania a decal. gibbous humpbacked. palpebrate having eyelids. (and "palpebral")