The debris that accumulates along the bottom of a women's purse that over time simulate the decomposition process and thus creatings it's own compost. Examples of items that create this nastiness are as follows : Tobacco, make-up, gum/ gum wrappers, and papers, coins, tangled up jewelry, unwrapped tampons, bottle caps, safety pins, pencil shavings, leaking pens, broken finger nails, etc.
"I better clean out my purse, I feel it starting to get heavier with purse soil, disgusting! "
Or Better yet, for educational purposes, I should conduct a little homemade study and science experiment by throwing a few flower seeds inside the purse and let's see what happens." LOL!