Acronym short for (Dunk, Sleep, Snapple, Leave).
Proceeding to have sexual intercourse with an individual, and going directly to sleep after finishing. Immediately upon waking, the administrator drinks a free Snapple from the selected target's possession, and leaves the target until further notice.
John: Yo bro! I'm about to hit up that chick tonight?
Stan: Really dude, try DSSL. It works everytime.
John: VERRY NICE!!!!