Gerald128's definitions
Great-great-grandchild's spouse.
My great-great-grandchild-in-law is a good person.
by Gerald128 April 7, 2021
Get the great-great-grandchild-in-lawmug. 
Spouse's grandnibling's spouse.
My co-grandnibling-in-law is a good person.
by Gerald128 April 7, 2021
Get the co-grandnibling-in-lawmug. My grandniece-in-law is a good person.
by Gerald128 April 7, 2021
Get the grandniece-in-lawmug. 
Get the co-uncle-in-lawmug. 5.5-tuple-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and eleven great-great-grandparents in common.
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and eleven great-great-grandparents in common.
My 5.5-tuple-third-cousin is a good person.
by Gerald128 May 15, 2021
Get the 5.5-tuple-third-cousinmug.