great-nephew-in-law

1. The grandson-in-law of one's sibling.
2. The grandson of one's spouse's sibling.

My great-nephew-in-law is a good person.

by Elivaldeq November 24, 2019

first great-cousin-nephew

First cousin's grandson.

My first great-cousin-nephew is a good boy.

by Hgcloziw November 23, 2019

fail nephew

someone with limited talent who none the less advances in a line of work based on the success of their much more notable and interesting uncle

Ted's just a fail nephew, the only reason anyone takes him seriously is his uncle William Nordhaus is a famous climate economist

by HuertDog May 12, 2020