by Yurmumsstepbro September 24, 2019

**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.
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"
"dude I know. I have to vote for him. It's in the twin rulebook"
by twintwintwin May 20, 2010

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

by blatblatblat666 April 6, 2017

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.
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.
by Intoxicated Goat December 7, 2013

You're my twin-chan.
by Ramona6437 December 20, 2010

Fuck Twins are two people who have sex so much that they develop a twin-like connection in which they say the same things at the same time and can predict what the other person is going to say.
The other day I really wanted tacos for dinner and when I came home my boyfriend had made tacos without me even telling him that was what I was craving. We are such fuck twins!
by Rae Bens April 9, 2018
