it mean nobody. you use it when the cops ask who you got your wed from or when you are buying it, it saves your name for later.
it was an alias used by jack the ripper if you didnt already know.
Gets lost often, doesn´t care who bosses him around, he´s got sass, a daredevil for touching a butt, gets all the ladies, almost known as a player.
guy 1: want to go to an after-party with me?
guy 2: Nah bro, i got laid. i just met her. i got invited to her house, but im still havin trouble with where she lives..
guy 1: just met her? dude, don´t get lost and stay outta trouble, cuz if you´re in jail, im not bailing you out. Don´t be such a Nemo.