menatration 

When one dude penatrates another dude

My ass is killing me from that deep menatration.

menatration by stocks on 2nd August 3, 2010

meatcation 

A vacation revolving solely around mass consumption of meat.

Man, I just got back from Kansas City, it was the best meatcation ever! I still have the meat sweats.

meatcation by Dec1001 August 10, 2016

mentalation 

the process of thinking

too much mentalation

mentalation by Pali High December 21, 2008

Neverending menstruation syndrome 

When a woman is always like having she's menstruation, getting easily upset, overacting and making big deal of random stupid things.

It's a softer kind of the raging bitch disorder with attention whore features.

-Mary is acting weird and furious these days, she must be having a raging bitch disorder.

-No buddy, not only these days, she definitely has a Neverending menstruation syndrome.

Neverending menstruation syndrome by Rodkor July 10, 2012

manstration

When a man is going through his monthlies

"You are a bitch right now - are you on your manstration?"

manstration by Jeremy W September 25, 2005

menstruation 

A process which happens every month to females and involves discharging the blood and other substances lining the womb, through the vagina. Lasts for 5 - 7 days. Can lead to uncomfortable situations if it begins in a public place, such as school and there's no tampons or pads on hand.

A common misconception regarding menstruation is that all females become moody and psycho during that time of the month. This is untrue. Not everyone suffers from PMS. It is also something that is not to be taken lightly if one DOES suffer from overbearing PMS.

Other things that can occur druing menstruation:
- cramps (abdominal pain)
- tender/sore breasts

Menstruation occurs throughout the majority of a female's lifetime, starting at puberty and ends with the onset of menopause.

When a female begins menstruating, it is cause for either celebration or lamentation.

Hey Chelsea! Guess what? My first menstruation cycle began last night!

menstruation by Zio November 17, 2006

manstration

when a man is in a particularly unpleasant mood, for no appearant reason.

A short tempered man
The male term for PMS, or bitchiness

Kyle: Dude just shut up already, you're annoying the hell out of me.

Sammy: Would you like me to get a tampon for that manstration?

manstration by Ima Crazy Bitch August 15, 2009