The mark left by a penis, when extracted from an anus and placed back into underwear. Brown/Dark green fecal matter inside the front of a man’s underwear. Usually 2' inches in length with a potent smell.
After me and Marilyn made love i came across a suspicious mark in the front of my underwear I came to the conclusion it was front skids.
by Paul Casal/Tom Gilbride January 23, 2006
by christu September 26, 2006