1. The child-in-law of one's half-sibling.
2. The child of one's spouse's half-sibling.
My half-nibling-in-law is a good person.
by Elivaldeq November 24, 2019
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Child of a paternal half-sister with maternal half-brother or child of a maternal half-sister with paternal half-brother.
My double-half-nibling is a good person.
by Hgcloziw November 23, 2019
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