Histress 

The is the male version of a mistress. It is a woman's long-term male sexual partner and companion who is not married to her.

Histress is mostly used when the she is married to another man.

Histress by fit4funru June 11, 2009

Hipstress

A term used to describe a female hipster

That hipstress over there is looking fine in her plaid shirt and her thrift store skinny pants.

Hipstress by Herbinator March 4, 2009

hipstress

A hipster mistress; often of a professor or other intellectual

Did you see the bedroom eyes she was giving Professor Williams? She is totally his hipstress. His wife HATES her.

hipstress by MacDeee July 27, 2006

Himstress 

a lonely and thirsty malewith no self-respect who willingly subjects himself to the attention of married woman

Have you met with Pete who such a himstress and only dates married broads.

Himstress by Geek god June 4, 2018

Hittress

A female that is successful, intelligent, independent, and almost always physically attractive. Derived from "heavy hitter" and "hitter" to represent the female demographic of powerful, motivated, prosperous individuals. New York City is home to the world's largest population of hittresses.

Hittress examples: Angelina Jolie, Beyonce, Oprah, Marissa Mayer (VP Google)

Hittress by Aspiring Hittress September 24, 2009

Hostress 

V. Stress and anxiety brought by the leader of a gathering or party
N. One who has extreme anxiety when entertaining guests

Verb: She was hostressing so hard In preparation for the party that she passed out on the coat pile by 7:00p.m.
Noun: The hostress was shaking with suppressed frustration while compulsively slipping coasters under the sticky cups dripping with condensation.

Hostress by Jesstice March 15, 2019