After having a bowel movement, there is a small leftover dung that is seen at the edge of the toilet. It is usually the size of the quarter or larger, and is usually caused by diarreaha. It can be a huge brown stain or a few hairs. The pooch trail is very stinky and can cause discomfort in the form of smell around the anus. Basically when someone doesn't wipe their ass good enough and it gets left on the toilet seat.
by Ld-I October 10, 2010