One who stands behind someone working on a computer and reads the information from behind. Once the person turns around the person then plays it off as if they where doing something else.
Wow, you just Dan'd me didn't you?
by my no due October 29, 2010
Dick and Sac
Oh shit, my D and S itches like a motherf?<ker after last night's party.
by Pat McCrotch19er July 06, 2012