P: Pre. M:Menstrual. S: Syndrome

Also...
Part Monster Syndrome
Pity Me Syndrome
Pain and Murder Syndrome

Lotsa syndromes...

PMS is when a girl's (who has gone through puberty but not reached menopause) uterus sheds its nasty ol' layer of mucus and blood because her egg hasnt been fertilized that month. That's the technical term.

Here's what it means for us guys out there: WATCH YOUR BACK. These crazy moodswings and temper tantrums will get you to hell faster then you can say "PLEASEDONTSTABMEWITHTHEKNIFE". Just stay back and don't try to help, cuz that makes it worse. You really can't fix it, and then the girl just gets all pshycho bitch sensitive and either A. Shuns you B. Yells at you C. Starts crying or D. Pulls out her concealed weapon. PMS is something girls gotta live with and guys gotta live with (yes, i acknowledge that girls have the worse part of the deal, but A. that is not our fault so don't take it out on us and B. we can't do anything about it so don't take it out on us even more for trying our best to help.)
Girl: Oucheeee i have cramps!
Guy: Aww baby lemme try and make you fell a lil better!
Girl:...what did you say?
Guy:I just said i wanted to make you feel better =)
Girl: DON'T EVEN TRY, OK? GOD MEN ARE SO INSENSITIVE. CAN'T YOU SEE I'M IN PAIN??!?!
Guy: I know you are, I'm just trying to help!
Girl: Pulls out concealed weapon (told you she'd do it!) GET OUT!!!!!!
Guy: This is my house...
Girl: Don't get sassy with me!
Guy:...?
Girl: *sigh* I'm so tired! (collapses on floor)
Guy: Are you ok???
Girl: *Wakes up* how DARE you wake me up from my nap! *starts crying* I love you so damn much!
Guy: What the hell
Girl: DON'T YELL AT ME!
Guy: I'm outta here...
Girl: DON'T LEAVE ME PLEASE! I'M SO LONELY!!!...hmmm I WANT SOME CAKE. No, i'm too fat! Am I too fat? YOU THINK I'M FAT!
Guy: I'll be back in a week...*shakes fist angrily* CURSE YOU PMS!!!
by Iwishihadapineapple May 7, 2008
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1. a personal or private message

2. to send someone a personal or private message on a message board, forum or chat room
If I get another PM about that topic I will flip out.
by The Return of Light Joker January 25, 2008
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The thing about pms, is women don't realize they are being bitchy. I don't even know, when I'm acting bitchy when I suffer from PMS. For those who say it's a fact that it doesn't exist, I don't know where you got that information, because it's a lie.
Women think they are being rational, when they are pmsing.
by Zinnia December 13, 2006
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I've never done butt play but her PM was amazing!
by Escortingwords March 19, 2017
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PMS (noun)

Premenstrual Syndrome or PMS is a hormonal state that affects some (SOME!) women and makes them more sensitive, bloated, angry, murderous and liable to need huge quantities of chocolate more than normally so. The condition lasts up to four weeks of every month.

PMS may also possibly stand for Punish My Spouse, or Pissed-off,& Murderously Savage. There is some argument amongst scholars over the exact words that make this acronym.
Husbands in remote Kreplachistan still attend "Poosiwippauniversit aat" or "School for Husbands." It's as mandatory before a Kreplachi wedding as a prenup in Beverly Hills. It's considered as necessary to surviving a Kreplachi marriage as laying in a huge supply of 2-layer, deluxe boxes of the best chocolates for the two or more weeks a month of a Kreplachi wife's PMS. (Scientists postulate that a gene in the Kreplachi population is found on the X chromosome, and women, being XX, get two of them and thus have twice the normal amount of PMS as the general population of women around the world.)

Potential husbands learn important skills like taking out the trash, mowing the lawn without prompting, cleaning up after the goats in the yard, running errands and putting down the toilet seat.

"It is a difficult habit to break if your mother did not teach you, as a young boy, to do this," remarks Hayseed Fuzzlov, one of the students who hoped he would marry well as a result of his studies. "I always use the toilet with the seat down," confides the more savvy Fabian Goatchek. "My mother trained me well."

It is said that the best brides will reject any proposal from a potential husband who doesn't possess the distinctive diploma, a whip crossed with a rolling pin tatooed on a tanned cat skin. "I wouldn't want a woman who didn't want me to have this schooling," remarks Igo Bonkers, a young man with a flourishing mustache, traditional in this mountainous land and useful for straining the bugs and leaves out of the strong Kreplachi tea "She would be a kind of a slut if she didn't." Unfortunately, after he uttered the Kreplachi word for "slut", three Amazons charged out of the bushes and clubbed him senseless with rolling pins. Such words are beneath the classically trained male students, and violations of the rules are judged harshly.

Advanced studies in diaper changing, doing dishes without breakage, foot-rubbing and finding gainful employment are available for those who really are serious about a good marriage, and remedial courses are typically completely booked months in advanced.

The final exam is said to be very tough: "They might ask you something difficult like 'Does this dress make me look fat' and you'd better have the right answer. You could die right on the spot if you get it wrong" Bonkers tells the reporter.

Last year eight men didn't make it through the course. But even their mothers weren't terribly sorry. "They just didn't learn. Not that we didn't try." remarked one mother, whose late son was a notable dunce. "He deserved what he got."
by Ortlieb Gottschalk July 10, 2007
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i dont know why everyone is saying all this shit about pms! its just before and during a girls menstruation week when she might get cravings, get bloated, get bitchy, have mood swings, cramps etc.
there are no examples of pms. its different for everyone.
by Lili333 April 18, 2007
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A ruthless gang who patrol the South of England jumping various other, more minor gangs. It is believed that the PM originally consisted of only five founding members, and have grown to be feared ever since.
I don't think we should go out tonight George, I've heard the PM are in the area.
by PaulSmithGX50 October 23, 2011
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