A childless woman who enters into a relationship with a man who has children, instantly becoming a mother.

(informal) mother-in-law

(US, informal, euphemistic) A mother whose child has died. / (US, right-wing politics) A mother whose child was killed by an undocumented immigrant.

(informal) Jeans, especially those for women, considered unfashionable and unflattering. / high-waisted bluejeans for women

(US, Canada) (typically of a business) Small and unsophisticated, typically because operated by a couple or a family.

plural of mom and pop

A small business, often but not always owned or operated by a family.

(informal) A mother who is overly protective of her children.

(US, symbolically) Wholesomeness and traditional (American) values. / (politics, US) Something that cannot be questioned because it appeals to universally-held beliefs or values.

plural of waitress mom