Sleeping with two separate partners within one 24 hour period. This is most commonly done without either partner knowing about the other.
by dude who fucks March 30, 2022

I'm having dinner with this hot chick and her hot mom tonight. They're both digging me. I'm most definitely having a MG Threesome!
by The Bota King April 9, 2020

by Zctr December 8, 2024

When a woman goes home with the bartender for coitus, only to find out after the fact that he is also a mezcal rep.
by freakforfernet March 16, 2023

A threesome in which the other two members are opposites in most to all catagories (ex. one is a thicc, latina girl with dark hair and the other is a skinny white girl with blonde hair)
by jpshel August 18, 2023

having a threesome with 2 ladyboys. You are both gay and straight at the same time since you are fucking 2 halfs a woman and 2 halfs a man.
Person 1: What did you do last night?
Person 2: I had a Schrodinger's Threesome man. Does that make me gay?
Person 1: Both?
Person 2: I had a Schrodinger's Threesome man. Does that make me gay?
Person 1: Both?
by Iwritefunnywords December 19, 2024

International threesome day is celebrated on the 21st of January every year. This is when three individuals get together and have sexual intercourse.
by Memes.n more January 19, 2022
