I'm orginally from the South, and most Southerners say "aunt" as aint--at least in my part of the South. I had a great, great aunt who was called Aint Doody. I can't even remember her real name now. There was a story about a cousin saying, "Oh, Aint Doody, I luv you!" So when I got my Pilot in 2005, all I could think of was, "Oh, Aint Doody, I luv you!" The bike became Aint Doody, but I shortened it to Doody, and I became Aint Doody.
Later when I looked at it, I thought--Hmmmm, this could be translated into meaning "not sh.."
Tis better to wear out than to rust out....