Humanoid creature with dark skin, swollen potato-shaped head, duck bill, and medieval religimous costumery growing out their body. Mammy nuns are more or less undestructible.

The Mammy Nuns were created by feeding mashed potatoes contaminated with synthetic mutagens to San Quentin prison inmates.

Coined by Frank Zappa in the early eighties for his bizarre rock opera, "Thing-Fish".
Mike's fashion-sense-challenged girlfriend dresses like a mammy nun.
by Ronly Bonly Jones March 06, 2005
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Bob:you so ugly that when you were born the doctor slapped yo motha then turned around and slapped yo daddy

Tom:ya mammy
by lil' romeo's wifey December 23, 2005
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adjective to describe a male in his 30s who is still living at home with his mother. A phenomenon common in, but not unique to Ireland..

role model Daniel O'Donnell, Eoin Mc Lovely

my brother he's a real mammy's boy
by Mary D November 23, 2005
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Cop: Sir I gotta get your name.

Perp: Yo mammy.

Cop: My what?
Perp: Yo mammy. Yo mammy boy!
by Hannibal Cannabis February 05, 2019
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used to qualify an attitude or remark as blend of stupid and childish
she gave us a cock-a-mammie story of how she got fired
by Doubya September 15, 2007
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Something you'd say to a friend that's close, and someone who likes lamb chops I guess😂
by baby Wilkins September 25, 2015
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