The Tattoo found on the lower region of a womans back. Often a tribal symbol or artwork that is wider than tall, such as angel wings, vines, and butterflies. It origins are believed to have started with early indian tribe(s) when a male would place his 'brand' on his female partners lower back to discourage other males, where the strategically placed brand would be seen during sexual acts, such as the 'doggie style' position.
Ironically, today it is usually understood by society as associated with sexual promiscuity and commonly reffered to using derogatory terms. Popular with women in their 20's, and frowned upon in their later years.
I thought she was a the girl next door until I saw her tramp stamp, and I knew she was a slut.