Mammy n. : A child's name for mamma, mother.

Example:
Do Irish people generally refer to their parents as Mammy and Daddy?

Taxonomy
Mammy, free encyclopedia, Al Jolson, Gone with the Wind, search, free dictionary, English dialects, stereotype, popular song, O'Haras, housemaid, film version, recurring character, Tom and Jerry, Jerry cartoons, middle-aged, pantheon, disambiguation pages.

Defination from the web:
Mammy Two Shoes, a recurring character in MGM's Tom and Jerry cartoons, a heavy-set middle-aged black woman. Mami Wata, a pantheon of ancient water spirits or deities. Mammy Yokum, a white hillbilly from the comic strip "Little Abner" ...