Character from the Preacher comics by Garth Ennis and Steve Dillon (Vertigo DC).
When his hero Kurt Cobain committed suicide, Sheriff Hugo Root's son shot himself in the face with a shotgun.
The suicide attempt failed though, and the reconstructive surgery left the boy with a large wrinkly hole in his face.
As Proinsias Cassidy the Irish Vampire put it, "that fella's got a face like an arse!", and so the boy adopted the name for himself and soon became a rock icon with the help of record producer Gene Sergeant (who later screwed him and ran off with the money).