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