Sibling's great-great-granddaughter.
My great-great-great-niece is a good girl.
by Hgcloziw November 23, 2019
Get the great-great-great-niecemug. Niece-in-law (only spouse's niece).
My niece-by-marriage is a good person.
by QWP998756 October 15, 2021
Get the niece-by-marriagemug. 
My step-great-niece is a good person.
by Elivaldeq November 24, 2019
Get the step-great-niecemug. First cousin's great-granddaughter.
My great-great-cousin-niece is a good girl.
by Hgcloziw November 23, 2019
Get the great-great-cousin-niecemug. Third cousin's granddaughter.
by Gtopql November 23, 2019
Get the third great-cousin-niecemug.