A Banjo Strummer is a person often from the hills of a southern state that may have high levels of heavy metals in their body and may be slightly handicapped. The term was derived from the movie Deliverance where a group of handicapped southerners played the banjo and raped passersby.
From “I Was Bitten” on the Discovery Channel. A BANJO STRUMMER was in China and wanted to see the elephants. He thought he was on a bus full of other tourists, but they were actually Chinese people. He found the elephants. They attacked and eviscerated him. He decided he was going to “disconnect” his heart by reaching inside and squeezing it. Rather than talk he “hooted” to tell some passersby he was injured.