Half-sibling's great-grandchild.
My half-great-great-nibling is a good person.
by Gtopql November 23, 2019
Get the half-great-great-niblingmug. 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. 
Get the great-great-great-niblingmug.