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

Son of a paternal grandmother with maternal grandfather, in other words, maternal half-brother of one's father and paternal half-brother of one's mother at the same time or also is the son of a maternal grandmother with paternal grandfather, in other words, paternal half-brother of one's father and maternal half-brother of one's mother at the same time.
My double-half-uncle is a good person.
by Hgcloziw November 23, 2019
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great-great-great-niece

My great-great-great-niece is a good girl.
by Hgcloziw November 23, 2019
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