What the heck does PM mean???

[Bleacher Creature]

[StopTheMorans]

1. purple monster

[Guy Fawkes]

2. Post Meridiem

[Renew Deal]

3. Pussy Magnet

[StopTheMorans]

5. SNAP!

[Beaverhausen]

4. Private message

[Sanity Claws]

6. pre menstrual

[pmbryant]

7. Prime Minister

Post Meridian
Private Message

:shrug:

[StopTheMorans]

8. short for pmbryant?

[pmbryant]

12. That's another one

This is the only place where I've been called "PM".

[Worst Username Ever]

9. primordial

[MissMillie]

10. President Miserable

I thought everybody knew that

[Cush]

11. Pygmy Moshers

[stupid grin]

13. pleasantly masturbating

[Lord_StarFyre]

14. It's the only two letters a guy can

...get outta his mouth before his PMSing spouce starts throwing a punch...

PMS = Permissible Man Slaughter

[OneTwentyoNine]

15. Past Morning

[da_chimperor]

16. Prenuptial Masturbation

So the groom doesn't have an embarrassing moment at the alter. Those pants can hide so little some times.

[Az_lefty]

17. PreMidnight???

[ohiosmith]

18. Prime Meridian.

prime meridian, meridian that is designated zero degree (0°) longitude, from which all other longitudes are measured. By international convention, it passes through the original site of the Royal Observatory in Greenwich, England; for this reason, it is sometimes called the Greenwich meridian. Universal time, the standard basis for determining time throughout the world, is civil time measured at the prime meridian.

[skygazer]

19. Post Mortem

[ronnykmarshall]

20. Praise Millie!

[motely36]

21. If your actually looking for a real answer...

It's private message

Although many of the other ones here are just as good!