Usually married to Uncle Dad, and related to cousin Grandpa. Also could be the victim/result of incest. Homemade hooch in the backwoods of the Ozarks are cited for this phenomenon.
Kid in School: "Holy crap Sarah Belle!! Little flipper footed Jimmy thinks his Mother is Marie Osmond! He is seriously messed up"

Girl in School: "Little Jimmy is crazy.. Come to think of it, his dad is named Donnie!! She could very well be Aunt Mom!!"
by Ezekiel Calhoun December 7, 2010
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The lady I always called Aunt is now my mother -in- law...I married her son years later
she was once my aunt now she is my mother-in law... she is my . Aunt Mom
by Nogrid17 January 12, 2018
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A woman who divorces her husband to marry his brother
My uncle arron came over and yelled at my dad for not paying my aunt mom child support on time.
by Donnie america January 19, 2018
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Aunt mom :

when you’re a biological mother to a child but you’re never around or don’t do shit for you child, rather you just pop up on occasion like an irresponsible Aunt.
No honey, your Aunt mom is not showing up for your birthday, she’s to “busy
by Nickg1269 May 2, 2019
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Informal terms used to refer to parents who are siblings who inbred.
"My parents are both siblings who inbred to have me so they're my uncle dad and aunt mom."
by Ekker July 29, 2022
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