octuple-fourth-cousin

Octuple-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and sixteen great-great-great-grandparents in common.

My octuple-fourth-cousin is a good person.

by ABGR June 9, 2021

double-half-first cousin

Child of their parent’s half-sibling with their other parent’s half-sibling or the child of their mother's maternal half-sibling with mother's paternal half-sibling or the child of their father's maternal half-sibling with father's paternal half-sibling.

My double-half-first cousin is a good person.

by Mr. Jacov November 23, 2019

Cousin squared

Auntie Alpha and Uncle 1 have children A,B,C

A,B,C are your cousins
1,2,3 are their opposite family cousins

You have no direct relation to 1,2,3 beside being your cousins' cousins
1,2,3 are cousins squared (cousin²)

The non-related cousin of my cousin is my cousin squared

by Ms Ter March 26, 2024

undecuple-fourth-cousin

Undecuple-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and twenty-two great-great-great-grandparents in common.

My undecuple-fourth-cousin is a good person.

by ABGR June 9, 2021

sesqui-cousin-uncle

Son of their grandparent’s half-sibling with the other grandparent’s full sibling.

My sesqui-cousin-uncle is a good person.

by Hgcloziw November 23, 2019

Cousin Davey's Law

As an online discussion about gun control grows longer, the probability that a Republican will mention crime in Chicago approaches 1. When this occurs, the Republican has lost the argument.

Assault weapons must be banned.
They are banned in Chicago. How is that working out for you Dems. - Cousin Davey
You just lost the argument under Cousin Davey's Law.

by idyt May 15, 2018

cousin raj

when you want to signal to your friend to leave the group and hang out as a duo

friend 1: ay bro did i tell u what cousin raj did
friend 2: ah shit guys i gtg

by burntwhitechocolate November 1, 2025