twin day 

Twin day is the day you celebrate your real twin or your twin as a title it can be celebrated on Fridays.

Happy Twin day

twin day by FadedVampire1 October 24, 2019

kick your crush’s twin day 

the thing gianna will do to me, celebrated on OCTOBER 15TH

me: “oh yeah yeah he’s fine don’t worry”
my twin: *gets hurt at game*
gianna: “kick your crush’s twin day is october 15th now. be ready”

kick your crush’s twin day by ttuurrttlleessaarreeccooll October 15, 2019

Slap Your Older Twin Day

National Slap Your Older Twin Day, occuring annually on April 17, gives the younger twin a free pass to slap their older twin. Maybe it's pent up resentment for being beat out of the womb, maybe it's just for fun, either way: they're free to slap.

"My twin slapped my today, but it's okay because it's April 17, so it's national Slap Your Older Twin Day, and she's the younger twin"

Slap Your Older Twin Day by colinisadumbass1234 April 16, 2020

national twin day

the one day of the year (nov 20th) that you and someone else have to dress up the same

happy national twin day on novemeber 20th

national twin day by funkymonkey22 November 2, 2019

National twin day

The day where you appreciate your twin for being there for you. (November 18) Thank your twin NOW!!!

Thanks you for everything Twin...
National twin day BITCHHH

National twin day by Dojgetthatcash November 18, 2021

Goon to a twin day 

Everyday from 2025, you must goon to a twin once a day.

Man 1: Yo have you gooned to twin yet?
Man 2: Yeah dude, I gooned to you today.
Man 3: Same bro you got some ass bro.
Man 4: Wait.. it’s goon to a twin day?

Goon to a twin day by TwistXL August 29, 2025

day after twin

n. Eddie Ramos. Day after twins may be good looking, intelligent human beings with a certain warmth to them that cannot be found in any other creatures. They are born the day after their "twin" and their twin may have many similarities.

"Damn, day after twin! You're one fine barista!"

day after twin by alkaline December 6, 2006