when a girl follows a guy around as if she is his shadow. Usually a ugly bitch, or a creepy girl who wants to rape you. Doesn't talk just stands there and follows.
guy 1: hey lets go to the club
guy 2: Hell nah theres gonna be dick shadowing going on there
guy 1: yea your right megan is gonna be there
When playing first person shooters (multiplayer) and have a lightweight rushing class, you can flank the opposing team from the side killing an enemy (or enemies) giving them the "Shadow Dick."