Twins are 2 people with the same set of genes if identical, but they can also be unidentical and of the opposite sex to each other. A lot of the time twins think that because they have each other they don't have to tell their best friends their secrets and problems. Often one twin overpowers and takes control of the other twin and therefore in schools they are often separated so they can grow as induviduals, but when this doesnt happen they can often bully and intimidate others. These are often the sets of twins that grow into old age living in the same house and dressing in the same clothes.
Mary-Kate & Ashley Olsen are identical twins

When people are separated in schools they are in separate classes and never share the same class and classmates
by ilovethetruth94 August 05, 2009
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What a woman says when referring to her breasts.
"Man, the twins almost came out of my shirt to say hi!"
by tw-nnz March 21, 2003
Another one of the many referances to balls, testicals cherries or big round things between a guys legs
OMG that fuck nugget just punched me in the twins! omg i was climbing over that fence and i tore my nutsack on it and my twins jumped out and escaped
by Zack Herrell May 02, 2006
Refers to balls, aka testicles.
I like it when you lick big Jim and the twings
by Jodayo July 20, 2003
One of the most annoying and awesome things on earth. On one hand you have this awesome person who looks just like you,and there a friend that's always there for you. But at the same time you have to live with constantly being thought of as twins and its pretty hard to shake that off and become your own person. It's fucking annoying when your a twin and the teacher is like how your brother/sister? Are you two fraternal? It kinda sucks to not be your own person sometimes.
Person One: Wow anna seems so awesome and unique.
Person two:Yeah,sucks that she's a twin and she can never talk to people without the words "Twin" in it.
Person One: Wow sucks for her.
by The only sane one December 28, 2007
A very good friend with similar interests or characteristics.
What up twin, you down for tonight?
by joker75 May 16, 2006
20 dollars worth of weed (2 grams)
if u pitch in 5 extra dollars, we can get a twin
by Melvin_flynt_da hustla November 13, 2003
A twin is the one person you absolutly can't stand, but can not live with out. They are always there for you. Always annoying you. The one person you have the closest connection with. You share the same blood, same ideas, same qualities (at different intensity levels), however is usualy the opposite of you with the exception of own personality quarks. Is your sibling, your best friend and worst enemy. Your twin. Your brother or sister. Born at the same time you were. Uncomparable, death contributing love.
I can not stand my twin!

My twin is my best friend.

I love my twin.

If my twin does that one more time, I will hurt someone!
by TheTwinster March 30, 2011

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