PSP STANDS FOR PLAYSTATION PORTABLE.
IT'S A HANDHELD DEVICE WHERE YOU GET TO PLAY GAMES, WATCH MOVIES, LISTEN TO MUSIC, ETC.
WHAT HE IS SAYING IS THAT YOU SHOULD USE THIS DURING THE 3RD SHIFT TO MAKE THE TIME GO BY QUICKER. TECHNICALLY THE TIME DOESN'T GO BY ANY QUICKER, IT JUST SEEMS THAT WAY WHEN YOU ARE CONSUMED IN A NON-BORING ACTIVITY.