This word was popular to the sub culture of misfits during the mid 80's to the first part of 2000. Deeders were not Jocks. Preps, Burnouts/Stoners, Geeks/Nerds, Redneck/Crackers or part the Gangster Rap/Hip Hop movement. Which was what most people were labeled in the mid 80's.
This sub group was a melting pot for a verity of people who mainly were grouped to together by early alliterative/ independent music. Which at the time alliterative music included. Hybrid Rap I.E.Political/Reggie or other non-traditional Hip Hop, Industrial, Punk, House/Electronic, Rockabilly, Reggie, Surf punk, New Age, Gothic, Freestyle, Grunge, Hardcore and what we still call alternative today. Deeders as a group of people contained Punks, Skaters, Rastas, New Wavers, Surfers, Freaks, Mods/Hardcores, Grunge, Hippies, and Strait Edge.
Today Deeders have evolved to spawn several sub cultures of their own. Some existing and some now extinct. These include GenXers, Club kids/Ravers, Goths, Emos, Hipsters, Rockabilly/Greasers, Sceans, Gamers, OtherKin, Juggalo, Fanboys and many more now have there own group label.
Deeder today is mostly used to describe a female who is part of the Punk,Alternative,Hippie,Goth, and New Age sub culture.