noun (often initial capital letters) Informal.
a man's sweetheart, girlfriend, or wife.
a woman regarded as the head of a family.
the female founder or a leading female member of a company, organization, movement, etc.
Chiefly Southern U.S. grandmother.
Origin of big mama
First recorded in 1950–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019