Get the co-grandnibling-in-lawmug. 
Get the co-grandnibling-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. Spouse's great-grandnibling's spouse.
My co-great-grandnibling-in-law is a good person.
by JAMP12 September 21, 2021
Get the co-great-grandnibling-in-lawmug. Spouse's great-great-grandnibling's spouse.
My co-great-great-grandnibling-in-law is a good person.
by JAMP12 September 21, 2021
Get the co-great-great-grandnibling-in-lawmug. 
Get the step-co-grandnibling-in-lawmug. The grandchild-in-law of one's spouse's sibling.
My co-grandnibling-in-law is a good person.
by Elivaldeq November 24, 2019
Get the co-grandnibling-in-lawmug.