Pooey Sheila
After excreting, a girl then proceeds to wipe her dirty anus, however instead of going from front to back, she goes from back to front. The Poo then gets over her vagina (Sheila) giving her a Pooey Sheila.
I went down on this girl the other day and she was so dirty, she must wiped from back to front giving her a Pooey Sheila