co-grandniece-in-law
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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co-grandniece-in-law
Spouse's grandnephew's wife.
My co-grandniece-in-law is a good person.
by Gerald128 April 07, 2021
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