Semenstruation 

When your having sex with a girl and she starts menstruating and you pull out after leaving a load, and the semen and menstrual fluids start coming out and mixing together making this dirty ass goop.

Also used after calling a guy, usually Korean, Semen. When his name is Simon. It is to take it to a 2nd level of name morphing

Sebastian - yo Semen
Simon - fuck you Sebastard
Sebastian - easy there semenstruation

Simon - i was totally banging this chick when i felt something weird so i pulled out after letting a load in. she semenstruated everywhere.

Semenstruation by Constapator June 17, 2010

Semenstrating 

When something is very frustrating

This Roblox obby is so Semenstrating

Semenstrating by charik November 20, 2017

seamenstruation 

When sperm drops out over a period of time after unprotected sex

I had seamenstruation for a week after he came inside me

seamenstruation by wernermeyer October 22, 2023

Memenstruation 

The emotional discharge of biting commentary in meme format from an unsupervised female, typically a witch, spinster, feminist, or lesbian. Often occurs when she has failed in her biological purpose of carrying a child to term or when she has rejected suggestions to "relax" or "smile." May be symptomatic of personality disorder clusters B or C as described in the DSM-5-TR.

After being told to "smile more" at the coffee shop, Karen unleashed a torrent of memenstruation on X, flooding her followers with scathing feminist memes.

Memenstruation by Raquel de la Roche July 17, 2025