A person who sun bathes in the nude, especially when using Coppertone tanning solutions on their buttocks. The tan starts at the neck, moving down, and "just keeps on going, and going, and going..."
We spent the day at Black's Beach in La Jolla and my girl got herself a copper bottom after falling asleep face down with her panties off.
by jclovis3 March 31, 2017
This condition occurs when a female who is currently on her menstrual cycle, suffers from severe hygiene issues. This leaves a scent of copper which can be smelled without trying. Also, it creates a rust colored lining in the persons underwear, therefor creating the appearance of a copper bottom.
That girl ain't showered in so long that I can smell the wishing well in Rusty Copper bottoms jockeys!
by scrimmy01 June 04, 2009