watch 01:47 Wiki Targeted (Entertainment) Do you like this video? Play Sound A grinder was a person who practised body modification, including piercings. Among them, the Greys of the Church of the Outsiders had LEDs put under their skin and had voice changers implanted into them. Some also implanted electric stun guns. (AUDIO: Believe) Retrieved from "https://tardis.fandom.com/wiki/Grinder?oldid=2976150" Categories: Biology + cat Cancel Save Community content is available under CC-BY-SA unless otherwise noted.