A hip portmanteau for Step-Uncle. Also applicable to any other step-relatives, i.e. Stousin, stister, Stad, ...etc.
My Step-Dad's brother cooked dinner last night, we call him Stuncle Albert.

My Stuncle be actin all dumb n stuff.

Me and Stuncle Craig drank 40's and watched the Winter Olympics last night.
by StuncleBuck December 28, 2012
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An elderly male relative who baths once a month.
Open the windows, your stuncle is coming round for tea.
by Gordon’s Revenge January 9, 2019
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Step-uncle
I thought steve was my cousin but he’s actually my stuncle
by Big black al November 23, 2017
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A stuncle is when your step dad is also your uncle.
He was my uncle when I was growing up then he started fucking my mom and became my step dad too... now he's my stuncle.
by SnM3831 January 12, 2020
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Stud-Uncle

Commonly used by lesbians to refer to themselves instead of going by "aunt"
My Stuncle Jess is so cool, she always brings me gifts when she visits.
by RootKook September 15, 2023
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hey Stuncle Randy how did your become my "#1 Stuncle" oh by fucking your mom
by stuncle randy April 24, 2023
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