Definition of mens:
(n) :
(nonstandard, African-American Vernacular) Alternative form of men (“plural of man”). [(collective, dated, fantasy) (The) people, humanity, man(kind).]
(n) :
Obsolete form of men's. [possessive case of men: belonging to some or all male humans.]
(n) :
Misspelling of men's. [possessive case of men: belonging to some or all male humans.]
(n) :
(Philippines, biology, colloquial) Clipping of menstruation. [The periodic discharging of the menses, the flow of blood and cells from the lining of the uterus in unfertilized females of humans and other primates.]