1. The grandchild of one's parent's stepsibling.
2. The stepgrandchild of one's parent's sibling.
3. The grandchild of one's stepparent's sibling.
2. The stepgrandchild of one's parent's sibling.
3. The grandchild of one's stepparent's sibling.
My step-cousin-nibling is a good person.
by Elivaldeq November 24, 2019
Get the step-cousin-niblingmug. by Niblet February 27, 2018
Get the niblemug. Child of their maternal first cousin’s child with the paternal first cousin’s child or double-first cousin’s grandchild.
My double-first great-cousin-nibling is a good person.
by Hgcloziw November 23, 2019
Get the double-first great-cousin-niblingmug. Spouse's nibling's spouse.
My nibling-by-marriage-in-law is a good person.
by NSBC968755 February 25, 2023
Get the nibling-by-marriage-in-lawmug. 
First cousin's great-great-grandson.
My great-great-great-cousin-nibling is a good person.
by Gtopql November 23, 2019
Get the great-great-great-cousin-niblingmug. Third cousin's grandchild.
by Gtopql November 23, 2019
Get the third great-cousin-niblingmug.