When one twin is clearly more attractive, cool, or likable than the other twin. After suffering through a lifetime of people asking where the "hotter" or "funnier" twin is, the less desirable twin inevitably forms a "chip" on his or her shoulder, thus making the chip twin even less enjoyable to be around.
1.
Party host: "Where is Andy? I love that guy. He's hilarious."
Chip twin: "Why is everyone always asking me where Andy is? How should I know? I don't know where he is all the time! I'm just as funny as he is!"
Party host: "Listen chip twin, you're not invited unless you are with Andy. Robin didn't go around trying to fight crime on his own."
2.
Guy at bar: "So how do you two know each other?"
Chip twin: "We're twins."
Guy: "No, seriously. How do you know each other?"
Chip twin: "We are twins."
Guy: "Come on. Seriously, how do you know each other?"
Chip twin: "You're an asshole."
*Twins walk away*
Guy: "What did I say?"
*Guy 2 walks up*
Guy 2: "Fucking chip twins, man."
**MOST IMPORTANT RULE:
ALWAYS vote for your twin if they're running for sophomore class treasurer. no matter what. and use this as proof that you have to.
"Hey, I heard your twin is running for treasurer."
"dude I know. I have to vote for him. It's in the twin rulebook"
Those dumb dorm room sheets. Or a band. You decide.
"yo, why is everyone talking about Twin XL??"
"idk, do you follow bands or are you in college?"
A boy who stuffs a dildo up his throat until he coughs up blood. While fingering a rhino
Why do you act like quentins twin?
An awesome friend who might as well be your twin.
You're my twin-chan.
when you are watching porn and the guys dick looks just like yours.
I just watched a video with a celebrity and realized my dick was almost identical.
I saw my friend while we were pissing and noticed we are definitely not dick twins.
Possesser of unfeasibly large testicles with potential to spawn multiple embryos with just a casual glance.
Also so named as a result of the ability to create two individuals out of a single winger.
Preavalent in urban sofa environments since the mid 80s.
Questionable parentage.
Dood, don't deke the Twin Maker, he'll fuck you up!