The granddaughter-in-law of one's spouse's sibling.
My co-grandniece-in-law is a good person.
by Elivaldeq November 24, 2019
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Get the great-grandniece mug.Sibling's great-great-granddaughter.
My great-great-grandniece is a good girl.
by Hgcloziw November 23, 2019
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Get the half-grandniece mug.Sibling's great-great-great-granddaughter.
My great-great-great-grandniece is a good person.
by Gtopql November 23, 2019
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