This phenomenon describes how some
people react to undesirable and uninspiring
work situations. This phenomenon is mainly applicable to
people working boring, mindless jobs, most of whom perform rote work -- e.g., data entry -- or are paid simply simply for their presence -- e.g., a booth attendant. Activities that constitute 'shutting down' and checking out' include: napping, reading, sending excessive/unnecessary text messages, and listening to one's iPod.
Elliott: I'm surprised Tom hasn't gotten more sleep
today -- doesn't he have to
work the graveyard shift tonight?
Mark: Yeah, but remember, he's a booth attendant in the middle of the
night...he's just going to Show up, Shut down, Clock in and Check out.