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Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and seventeen great-great-great-grandparents in common.
Irregular-nonuple-fourth-cousin.
by Cerejini May 21, 2024
mugGet the irregular-nonuple-fourth-cousinmug.

Belly Cousin

Male friend who have had sex with the same female. Similar to "tunnel buddy"
Mike: I had sex with Alyssa last night.

Jon: Oh, shit! I used to hit that also! We're belly cousins!

Both: *high five
by Flyboy87124 October 29, 2020
mugGet the Belly Cousinmug.

Cousin Squared

When you have a cousin related on both sides of your family.
When a set of siblings marry another set of siblings - both marriages have children and they are cousins squared.
Aka cousin to the power of 2.
Can’t wait to go out tomorrow with my cousin squared.
by Cousin^2 November 16, 2019
mugGet the Cousin Squaredmug.

sesqui-great-cousin-uncle

Son of their great-grandparent’s half-sibling with the other great-grandparent’s full sibling.
My sesqui-great-cousin-uncle is a good person.
by Hgcloziw November 23, 2019
mugGet the sesqui-great-cousin-unclemug.

tenth-cousin-2X-removed

Tenth-cousin-twice-removed (10C2R).
My tenth-cousin-2X-removed is a good person.
by N8953SW June 26, 2021
mugGet the tenth-cousin-2X-removedmug.
Great-great-grandparent's male first cousin.
My great-great-great-cousin-uncle is a good person.
by Gtopql November 23, 2019
mugGet the great-great-great-cousin-unclemug.
1- Second-cousin-twice-removed's spouse.
2- Spouse's second-cousin-twice-removed.
My second-cousin-twice-removed-in-law is a good person.
by JAMP12 September 21, 2021
mugGet the second-cousin-twice-removed-in-lawmug.

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