Chip Twin

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."
by ChetWhitlock September 25, 2014
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parasitic twin

In medical circles can refer to twin reversed arterial perfusion, or a subset of conjoint (siamese) twins. Two fetusii develop conjoined, but one (the parasite) does not fully develop and is wholly dependent on his host brother.

In team management refers to a redundant slacker who performs an identical, complete subset of the effort performed by a more capable worker.
a: we have the same job! we're like siamese twins!

b: nah, I do twice as much. you're a parasitic twin
by justsomerandomdude October 14, 2009
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twin rulebook

**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"
by twintwintwin May 20, 2010
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Twin Twister

The act when twins each pick up a person from a different bar and take the girl or guy back to the same house without telling each other. Both twins use the same alias. After intercourse initiates, they must then meet at the bathroom and switch bedrooms. After they finish having intercourse, they swap back and the girls never find out.
Yo bro, we gotta pull a twin twister this weekend.

Dude this past weekend we found the hottest girls to pull a Twin twister on.

Me and my twin sister pulled a twin twister on these spanish fashion models over spring break
by Dirty dan1235 December 15, 2019
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Cover Twins

Two people that are suspected, or actually, having repeated sexual encounters.
"The two of you are definitely cover twins!"
"I bet that they're cover twins... They're always spending so much time together"
by abcdef36 September 25, 2011
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Twin Sack

To get beat in a video football game (Madden or NCAA) by 21. The person losing by 21 gets a courtesy drive once the other player hits 21. This helps to move games along.
Tommy got twin sacked since he could not score on his courtesy drive, ending the game right there.
by Biggunz240 December 16, 2010
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Twin Piston

When a male wears a strap-on backwards and proceeds to have sex with two women at the same time. One in front and one behind
Bro, my ex called me last night and wanted to have a three-way with her best friend. Needless to say, I brought out the twin piston
by sthrock4 May 04, 2017
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