Grand Uncle 

An uncle who is very grand and kind.
An uncle who is our uncle and also a grandfather.

My Grand Uncle gave me lots of cookies and made me fat.
My Grand Uncle is very chubby and has a big belly.

Grand Uncle by supercutekid November 19, 2011

Gran-Uncle 

that country nigga that has a nephew thats older than him that have produce offspring, related to old man baby

i pulled up to my great-grandma house to find my Gran-uncle bumping some Theodis Ealey - Stand Up In It, this country ass nigga

Gran-Uncle by OG (original gran-uncle)850 July 14, 2022

Uncle Granda 

Cunt that's been in aw eh wars, aw eh films n been pished through aw em.

Mind uncle granda pure mad saving Ryan

Uncle Granda by Hand Jobbies October 29, 2019

granduncle-in-law 

1. The husband of one's grandparent's sister.
2. The brother of one's grandparent-in-law.

My granduncle-in-law is a good person.

granduncle-in-law by Elivaldeq November 24, 2019

co-granduncle-in-law

Spouse's grandpibling's husband.

My co-granduncle-in-law is a good person.

co-granduncle-in-law by Wonbig October 13, 2021

granduncle

Grandparent's brother.

My granduncle is a good person.

granduncle by Mr. Jacov November 23, 2019

granduncle-in-law 

1- Grandaunt's husband.
2- Spouse's granduncle.

My granduncle-in-law is a good person.

granduncle-in-law by Gerald128 April 7, 2021