Though the literal acronym requires the woman to be a mother, it is often used colloquially for any attractive woman perceived to be in the 30–50 age range. Specific Search Associations

When paired with the name "Naomi," the term is most frequently associated with adult film performers or specific adult-oriented content listings: what does milf mean - AmazingTalker

The acronym stands for "Mother I'd Like to F***", a slang term popularized by the 1999 film American Pie . In general usage:

While some women reclaim the term as a symbol of confidence, others find it objectifying or crude.

It describes middle-aged women who are considered remarkably attractive sexually.