russian twins

When two people, have fucked other people, and then the other people have fucked each other.

Emma and Aaron are Russian twins because they fucked Morgan and nick and then Morgan and nick fucked eachother.

by Squid61869 February 16, 2020

austrian twins

When a man fathers two children within one year, one by his wife and one by his mistress.

Thanks to Arnold Schwarzenegger, Austrian twins are the new Irish twins!

by chitown91 June 02, 2011

phone twins

Two friends who own the same phone. Usually after one of the two has owned it for a while.

Have you seen Antonio's Omnia phone? Yeah Michelle has one too. Oh so they're phone twins.

by Antono January 27, 2009

twin babies

a pair of breasts, tits, jugs, mammaries, or a rack that is youthful and attractive.

"Look at Kyle's mom's twin babies!"

by Namer October 18, 2007

fradentical twins

n./ Twins that look similar, but arent identical twins.

Matt and Gabe definitely look alike, but you can tell they aren't identical twins, so they are fradentical twins.

by Byg Byrd ALP August 16, 2008

Twin-Twin Transfusion

A sex act in which, the male(s), while fucking twin females, cum into the mouth of one twin and she then spits that load into the mouth of the other twin.

A play on the actual condition in which during a twin pregnancy, arterial blood from donor twin passes through the placenta into vein of recipient twin. Essentially the donor twin gets less blood and the recipient twin gets more.

Man I had a great time with those twins yesterday. They even performed a twin-twin transfusion.

by rishta September 24, 2011

Twin-In-Law

When one of the married couple shares the same birth date as the other spouses siblings.

Jon A. (birthday december 13) marrys Anna P. whos sister Kelly P. (birthday december 13).
Jon and Kelly are Twin-In-Laws!!!

by Jkasp November 13, 2009