Heart Twin 

a person who loves all the same things you do and/or someone you connect with on a level you can't explain. It's as if you have an identical heart.

I love my heart twin. She's more than a best friend and we have everything in common.

Heart Twin by EchoAndTwinkle October 22, 2010

Dick Twin 

You're watching porn, and then you see something on screen that looks a lot like the something in your hand. Your dick twin! And suddenly, you feel a lot better about yourself. Suddenly, you feel like you're having sex yourself! Depending on what's done in the situation, 'dick twin' can be both a verb and a noun, and it can be both the actor on screen, and the little actor who gets way more screen time.

'Wow, that's a dick twin right there.'

'I'm dick twinning, send you the link later.'

'I dick twinned last night. But I think mine's a little girthier.'

'Dick twinnage can save a man.'

'My dick twin even sounds like me.'

Dick Twin by lookaroundyou August 25, 2013

Dolan twin marathon

When a Dolan twin fan continuously watches Dolan twin videos back to back just to admire how perfect they are

“ yooo I’m on a Dolan twin marathon rn can’t talk “

Dolan twin marathon by Hehehehe_456 October 7, 2018

aphex twin 

the best electronic artist ever, makes his own synths and samples and is totally original...

-yo gee, this shit is hot, damn who did this?
-aphex twin, who else

aphex twin by Anonymous August 29, 2003

hey twin 

something to comment on an attractive person's instagram photo to humble them

an attractive person: *posts a selfie*
you, an ugly individual about to ruin their day: hey twin 😍 we need to hang out sometime!

hey twin by bagelgirl2003 May 15, 2020

conjoined twin 

Someone who is born as a twin that is attached to the other twin in some way. Over 50% of all conjoined twins die at childbirth. Many others don't live to be 10. However, doctors can seperate conjoined twins but the procedure is very risky.

Michael and Matthew are conjoined twins. They are joined at the head and may never seperate.

conjoined twin by Anonymous July 12, 2003

birthday twin 

someone who has the same birthday as you.

whether it be same day, month or year.

Person 1: Hey man It's my birthday.
Person 2: Noway! It's mine too!

Person 1: Hey man, we're birthday twins!
Person 2: Cool man!

birthday twin by ROCKGODFROMTHE60S January 23, 2016