First cousin's great-grandchild.
My great-great-cousin-nibling is a good person.
Fifth-cousin-seven-times-removed (5C7R).
My fifth-cousin-7X-removed is a good person.
Spouse's first-cousin-twice-removed's spouse.
My co-first-cousin-twice-removed-in-law is a good person.
A normal cousin but with a boy's name; like Stacy
My cousin's name is Stacy. Why does your cousin have a boys name? She is a Cousin Stacy