Prehistoric Monster Syndrome
What causes women to turn into rabid feral beasts once a month.
Joe: Hey
Sandy: Hi honey!
Joe: Make me a sandwich.
Sandy:Grrr PMS!
Sandy turns into feral monster.
Sandy rips Joe's arms off and beats him with them.
by politicaljargan January 30, 2008
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Bob: my girlfriend is PMSing, can i come over?
Ian: don't fall for that shit, she is just being a bitch. slap her across the face and tell her to knock it off.
by Ian Wetzel September 14, 2004
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Pre-Menstural syndrome (A.K.A - Period).
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A time in the month when a woman gets super human strength, moodswings and becomes extremely cranky and annoying.
If you have a girlfriend and suddenly she becomes extremely annoying and angry at you when you did nothing wrong at all, that must mean shes going through a PMS.
If she is having a period, prepare for her to become an insensitive piece of shit that annoys you until your head explodes, and the worst of it is that you will have to forgive her about that because shes having a goddam period.
Kyle is chatting with Abbey over the messenger:

Kyle: Hey abbey what's up?

Abbey: STFU loser! I've had it with you, ya' pain in the ass!!!

Kyle: PMS..?

Abbey: Yeah.. I'm sorry.. I love u 'kay?

Kyle: -runs away-
by FLking August 26, 2007
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The act of being a purple majestic snowflake.
Matt you're such a PMS
by Dabio_Munch October 17, 2015
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Everybody knows what it means for a woman, but for men PMS means Pack My Suitcase.
Woman: What? You haven’t done that yet !!!
Man: Hey, cool down, you ask me 2 minutes ago
Woman: You are so irresponsible
Woman: Do you love me at all ?
Man: All right, I know which week we are now, it's PMS week, time to Pack My Suitcase.
by Helvisse January 23, 2008
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A time of the month where guys need to back the hell off and girls are capable of ANYTHING. A good piece of advice is to buy 2 dozen flowers everyday and smile when she throws them at you. If she crawls in her bed and cusses you out and tells you to leave her the fuck alone, if you don't want to be sterile for the rest of your life, however short it may be, leave her alone.
Guy: God, this PMS stuff is really annoying.
Girl: Do you want to know how I feel? (Pulls out a very large knife.)
Guy: I think this is when I go run, buy you chocolate, come back, and get the hell out.
by La'Rae November 12, 2010
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