The United States Postal Service- A government organization responsible for receiving and delivering mail within the United States and also exporting it to other countries for international delivery. Very slow.

It's when you 'seal the envelope, stamp it and send it off'. i.e. When a man cums on your butt cheeks, smacks your ass and then pushes you aff the bed.

A really fucking cool guy from the game series "Postal", he also wants you or your surviving family members to sign his petition.

When going postal can't describe the amount of psychotic behavior that will be exhibited. Phrase is related to the amount of postal traffic during the holidays and how postal employees are under even more stress during those periods.

When somebody gets really pissed and acts out in violence. They might push someone's head through a wall.

an evil scheme devised by the postal system so that packages intended to me sent to maine end up in maryland

extremely energetic or snarky person all hopped up on caffeine. may be annoying. may be slightly crazy. may be pitching a fit, or working fast and furious. may be the next new legal defense, following the "Twinky defense."