the twin rule of gmod murder 

This rule states that, when playing Murder in Gary's Mod, if any two people share the same/incredibly similar color (ie blue and blue, purple and magenta, dark green and slightly less dark green, NOT dark blue and cyan), one of them is the murderer.
Works around 87% of the time.

Tango:It's either Lima or Whiskey!
Lima and Whiskey:Why us?
Bravo:You're both pink!
Lima:So?
Tango:So? The Twin Rule of Gmod Murder states that since you're twins, one of you is the murderer, simple as that.It's just how Gmod works.*shoots Whiskey*
*Game ends*

the twin rule of gmod murder by Passing November 30, 2015

Birthday twin pals 

When two or more people, who are not twins in the traditional sense, share a birthday.

Chris, Tasha and Kara's husband all share the same birthday making them birthday twin pals. How freaky!

Birthday twin pals by Sallgoodman December 12, 2016

A Twin 

Two bottles of beer taken from the fridge for consumption

When you grab a couple of beers from the fridge. I'm just gonna grab a twin, u want one?

A Twin by wordsmithdave June 12, 2018

Reveal the twin towers and terrorise that shit 

Reveal the boobs and let me destroy them (motor boat, dick slap etc.)

"Hey Christy, let me reveal the twin towers and terrorise that shit" said a horny Geordie one rainy, overcast day.

Reveal the twin towers and terrorise that shit by Tangledhairyass. March 18, 2014

evil twin 

1. an illegal or nasty counterpart

2. a rouge wi-fi access point that appears legitimate but is actually used to eavesdrop over the internet

If that is an evil twin, I don't want to know what the real thing is like.

evil twin by The Return of Light Joker March 27, 2009

supermans twin 

Someone that plays a sport with heart. Someone who plays with power. Started by bay area rapper D.A.G.

-"mike flys to the ball like he was supermans twin" -taft soccer by. D.A.G.

-did u see that guy playing football today, he was running people over like if he was supermans twin.

supermans twin by jose cuervo September 23, 2008

siamese twin 

A sexual act by which a man cums on girl1's face and then sticks girl2's face to girl1's. The semen acts as a glue and the site depicts that the girls are siamese twins.

Dude! I just did the siamese twin with two girls in a threesome last night!

siamese twin by bradley platt July 14, 2011