Manstruation 

Noun; The periodic discharge of blood and mucosal tissue from the uterus, occurring approximately monthly from puberty to menopause in nonpregnant women claiming to be men.

"Wait, why did Levi get to go home?" - "He was feeling ill; it's his monthly manstruation period..."

Manstruation by Biomechannibal January 16, 2022

Manstruation 

That unpredictable period of time that a man gets unexplainably irritable, similar to PMS.

I don't know, everything just seemed to piss me off! My family could do no right! It must be my time of manstruation.

Manstruation by Extremejutsu February 5, 2023

Superior menstration 

Women with extremely heavy and painful periods have the "Superior menstration" These women are "superior" over the inferor women with lighter menstrations.

Those who have the "superior menstrations" are often strong, beautiful, charismatic and passionate people.

Her periods have heavy flow and are extremely painful, she must have superior menstrations, therefore she must be a strong and independant individual.

Superior menstration by Sparrow of the swedish forest January 28, 2024