The husband of one's grandparent-in-law's sister.
My co-great-uncle-in-law is a good person.
Great-great-grandparent's brother.
My great-great-granduncle is a good person.
Great-great-grandparent's brother.
great-great-granduncle.
Sesqui-first cousin’s grandchild.
My sesqui-first great-cousin-nibling is a good person.
That one phrase you’ll never heard the band director say
After a great marching performance by the band, the band director says, “ Wow, you guys sound great!” Then, I wake up from my dream