What does Buttmark butt marks mean?

Buttmark butt marks meaning in Urban Dictionary

The soft folds of toilet tissue you invest in the middle of your buttcheeks as you stand up to provide a courtesy flush so the cold water doesn't splash your sensitive and painful infant smooth epidermis. The identation of someone's butt. Most typical in seats and couches, when an individual has already been sitting in the same area for an extended time of time.See ass groove