if a dude sleeps with a girl and doesn't shower, gets up the nextmorning and can still smell her on his member... she made his dick stink... thus a "cockskunk"
"Dude, I swear I could still smell that cockskunk this morning when I took a piss...."
When one applies body wax to their cock and lies their cock upon the trench of an individuals ass crack. Henceforth, waxing the hair of the victim’s ass crack in a provocative manner.