Name Rank and Serial Number are the only things that a POW is supposed to give to his captors. This has lead to it being used to signify lying or being unresponsive to the questioning of authority figures.
Employee 1: I saw the boss grilling you in his office did you tell him I put the gay personal ad in the paper with his name and home phone?
Employee 2: Don't worry about it man, Name rank and serial number.
v. To stay in an establishment past that establishments closing time thereby preventing the employees from closing and going home.
Waiter: Man closing time was 20 minutes ago, that table in the back won't leave.
Cook: Those assholes are totally close blocking us.