Mistress 

A woman other than his wife with whom a married man has an ongoing sexual relationship

Mistress by Allison July 15, 2003

Mistress Day 

The day before Valentine's day typically reserved for a man taking out his mistress or girlfriend. On Valentine's Day a man is "required" to take out his wife or steady girlfriend. However, the restaurants, bars and clubs are packed on February 13th for the better looking women in a man's life.

Mistress Day gifts are typically always jewelry and lingerie, while Valentine's day gifts are chocolate and teddy bears.

The most popular day for "short stay" hotel bookings.

A man said to his wife on February13th, "I'll be working late tonight, I'll make up for it tomorrow on Valentine's Day". Secretly he was preparing his cover for Mistress Day celebrations!

Mistress Day by Rob bie April 1, 2012

Mistress day 

The day before St-Valentines, February 13th, which is known as the official Mistress Day.

Dude: I got my flowers and chocolate ready for my wife for St-Valentine's day yet I'm missing the gift for my mistress for Mistress Day that's coming right before. Oh and I'll also need tons of condoms.

Mistress day by Dr Manian March 29, 2012

Mercury Mistress

"A fine automobile is something to be admired - even adored. It's an extension of you. You love your car so much, you want to share your most intimate moments with it. Well, now you can. Introducing the Mercury Mistress, the world's first car that you can actually have sex with." Clip from SNL.

Me and My Mercury Mistress gonna hit the blvd . .

Mercury Mistress by Robsatx November 5, 2005

Moistverse 

The word to describe the event that took place over the internet (specifically YouTube) from November of 2021 to January 2022. The Moistverse was based on the YouTuber and Twitch Streamer Charles White, aka Moist Critikal, aka Penguinz0. The Moistverse was a meme where people who looked like Charlie, but where different in certain ways, (IE. different race, gender, age, etc.) would film themselves quoting his iconic “WOOOOO! YEAAAH BABY, THATS WHAT IVE BEEN WAITING FOR, THATS WHAT ITS ALL ABOUT! WOOO!” line. This meme picked up traction and was recognized by Penguinz0, and was soon dubbed The Moistverse, colliding the term Moist and Verse (as in like Spiderverse, or Multiverse, referring to parallel universes).

P1: Dude, this Moistverse thing is great!
P2: Moist what!?
P1: The Moistverse! You know, where someone impersonates Moist Critikal but with a twist! Like “Australian Charlie” or “Female Charlie”!

Moistverse by JustaAlien January 27, 2022

Soiled Mistress 

A glance of disapproval, reject, disgust, or hatred. Usually given by strangers or rude friends.

Joe: She is pretty why don't you ask her out?
Harry: I thought I had a chance until I smiled and she gave me a soiled mistress.
Joe: Oh man.. that sucks.

Soiled Mistress by codliveroilman May 13, 2013

legit mistress

noun: a person that is sexually Involved with another person who is still legally married but also separated or pending a divorce from their spouse.

The wife and I are getting divorced and I’m dating this smoking hot millennial, she’s my legit mistress.

legit mistress by Bearded bandit from outerspace December 17, 2019