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when your brother is also your uncle either because your mother had a child with your grandfather or your father had a child with your grandmother: the male offspring being your brother; because you share one parent, and also your uncle; because he is the child of your grandparent as well
Ronald: "Hey Bruncle Bob!"

Bob: "Hey my dear ole brephew, Ronald!"

Ronald: "Did you call my Dad this weekend?"

Bob: "You mean my Grandpa? Yep, he said he put you back on his will even after you shot his dog."
bruncle by fartknocker101 December 23, 2009
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a brother and uncle at the same time (weird)
"My bruncle is coming to visit me this weekend"
-Winston Furth
bruncle by slipknot rocks October 15, 2004
inbreeding term. used when referring to your brother, who is also technically your uncle.
Why is your bruncle always looking at your little sister like that?

This is Billy-Bob, my bruncle. We have a VERY close family.

What time is your brother-i mean uncle coming to pick you up?
bruncle by B August 12, 2003
The majority of males born in Barnsley
Hey Mick, have you seen my bruncle Roy?

Yes son, hes just seeing to your Granty Mary....
Bruncle by Urban Gorilla September 12, 2019
The hybrid formation of a brother and an uncle. Common in Tasmania, Australia.
"I tried to do my family tree but I didn't know where to put my bruncle"
Bruncle by Brunkle March 3, 2009
I had a sister quite a few years older than myself. She had a child - my niece - who is only three years younger than me. We spent a lot of time together growing up. I am close like a brother, but technically her uncle. Hence the word Bruncle. Additionally, that makes her my sister/niece or sniecester.
Bruncle by pistolapete April 4, 2011
everyone’s distant and very close relative in the same person
my bruncle is my brother and my uncle

my grandpa is also my son-in-law therefore he is my bruncle
bruncle by CheVelle 50 December 16, 2021