The best friend of Arnold Andrews, The Grad, Coalhead skipped Riverhead High School Prom and thus escaped being killed by Katrina the Teenage Witch as the other attendees were.
“He turned out to be a cannibal killer who made chili out of his victims for Daddy-O’s Burger Joint and Teen Hang-Out. Coalhead later had his arms eaten by his victims . . . who had stopped living and became mixed up zombies! His arms were later replaced by twin chainsaws by the enigmatic Mr. Spooky, who Coalhead killed, either as an unfortunate accident, or as an act of pure evil. Coalhead had been watching the actions of The Grad and has sworn to get revenge upon his former friend.
With a power chainsaw at the end of each of his arm (sic), Coalhead Chainsawhands is deadly in combat, and can cut through just about anything. However, Coalhead now has problems buttering toast or using a pay phone.”
Credit What’s What in the Lethargic Universe, Lethargic Comics #8 – Captives of the Simian Discount Store!