co-cousin-in-law

The child-in-law of one's parent-in-law's sibling.

My co-cousin-in-law is a good person.

by Elivaldeq November 24, 2019

second-cousin-once-removed

1- Parent's second-cousin.
2- Second-cousin's child.

My second-cousin-once-removed is a good person.

by JAMP12 September 21, 2021

Sister-Cousin

Your female cousin whom you are so close with that your relationship reminds you of a loving pair of sisters.

That’s not just my cousin. That is my sister-cousin.

by John Jacob Allen Smith March 5, 2024

irregular-quindecuple-fourth-cousin

Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and twenty-nine great-great-great-grandparents in common.

Irregular-quindecuple-fourth-cousin.

by Cerejini May 21, 2024

4.5-tuple-third-cousin

4.5-tuple-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and nine great-great-grandparents in common.

My 4.5-tuple-third-cousin is a good person.

by Gerald128 May 15, 2021

double-first cousin-nephew

Son of their maternal first cousin with the paternal first cousin or double-first cousin’s son.

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

by Hgcloziw November 23, 2019

second great-great-cousin-nibling

Second cousin's great-grandchild.

My second great-great-cousin-nibling is a good person.

by Gtopql November 23, 2019