co-cousin-nephew-in-law

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

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

Cousins with Ulysses

Dumbass cousin

Paul is cousins with Ulysses

second-cousin-8X-removed

Second-cousin-eight-times-removed (2C8R).

My second-cousin-8X-removed is a good person.

quadruple-half-first-cousin

1- Child of double-half-aunt (daughter of maternal grandmother and of paternal grandfather) and of double-half-uncle (son of paternal grandmother and of maternal grandfather) at the same time.
2- Child of double-half-aunt (daughter of paternal grandmother and of maternal grandfather) and of double-half-uncle (son of maternal grandmother and of paternal grandfather) at the same time.
3- Person who, in relation to the other person, has zero parents and four grandparents in common (in different manners that the double-first-cousin).
4- Quadruple-half-cousin.
5- Quadruple-half-1C.

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

sesqui-fourth-cousin

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

My sesqui-fourth-cousin is a good person.

6.5-tuple-third-cousin

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

My 6.5-tuple-third-cousin is a good person.

double-first great-cousin-nephew

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

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