First cousin's great-great-grandson.
My first great-great-great-cousin-nephew is a good person.
by Gtopql November 23, 2019
Get the first great-great-great-cousin-nephewmug. 
Get the half-great-great-great-nephewmug. 
Get the half-great-nephewmug. Half-sibling's great-grandson.
My half-great-great-nephew is a good person.
by Gtopql November 23, 2019
Get the half-great-great-nephewmug. by Hgcloziw November 23, 2019
Get the second great-cousin-nephewmug. Son of their maternal first cousin’s child with the paternal first cousin’s child or double-first cousin’s grandson.
My double-great-cousin-nephew is a good person.
by Hgcloziw November 23, 2019
Get the double-great-cousin-nephewmug.