The act of Poo digging is very simple to understand. Here are a few words that might explain this a little better.
Poo pushing, Boulder busting, Anal, Ass pounding, Butt Secks, ect..
If you still don't get it, you are mentally retarded, and in simpler terms. My Penis, Your ass.... Poo digging.
1] Dude! I so caught Adam and Jim poo digging on each other!
2] Danielle loves to go poo digging.
3] Kt gets a sad face and sits in the corner after she goes poo digging.