a mistress is a female girl or woman who has sex with an married man, knowing he is married. and they will keep this up for the entire marriage. i dont know all the details he may support her as well.
because of her beauty he made her his mistress...that he couldn't resist her even though he was happily married.
by Megasus Thrist Jesus Christ April 22, 2022
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aka Tina Noire. Guardian servers cookie mistress in City of Heroes
Mistress Noire: *gives cookies* :o
by Noire81 May 25, 2009
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A married woman who has been banging dudes on the side since the couple started dating.
Husband “you’ve been banging Corey this whole time?”
Wife “ Yes, I’m a bar mistress
by HOTCARLD August 16, 2023
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1. The bedroom of a woman in a position of authority, control, or ownership, as the head of a household.

2. As opposed to a master bedroom.
1. Cherie’s mistress bedroom is her sanctuary.
2. This house has two main bedrooms, a mistress and a masters.
by CeeYou2 September 17, 2022
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1. The bedroom of a woman in a position of authority, control, or ownership, as the head of a household.

2. As opposed to a master bedroom.
1. Cherie’s mistress bedroom is her sanctuary.
2. This house has two main bedrooms, a mistress and a masters.
by CeeYou2 September 17, 2022
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A huge Denki Simp who thinks they’ll meet him one day 🥲

Ex: The person who is writing this ;D
I’m Denki's Mistress— JIROU BETTER BACK UP
by DenkisMistress March 8, 2021
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Invisible mistresses are even invisible to each other and not just the guys invisible wife when he gets to the afterlife depending on what you believe in.
The bigot misogynist womanizer homophobe faggot loser dude had about 40 something invisible mistresses waiting on him in his afterlife that he didnt want his invisible wife to know about. He also didnt want the invisible mistresses to find out about each other, since that would fuck up the imaginary pussy he wanted to get from all 40 of them when he got to the afterlife, even though he didnt know how he would actually get any of this done in the afterlife.
by Solid Mantis July 19, 2020
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