>>3583179>>3583484It depends on the dictionary.
The Cambridge English Dictionary agrees with you:
https://dictionary.cambridge.org/us/dictionary/english/milfThe Collins English Dictionary does not:
https://www.collinsdictionary.com/us/dictionary/english/milfDictionary.com (which is based on the Random House Unabridged Dictionary) takes the middle road and says the term MILF "usually" (as in, not always) refers to mothers:
https://www.dictionary.com/browse/milfThe term we should be using here is 'Christmas cake' which has a standardized, non-subjective meaning. Although it doesn't carry the same literal meaning as MILF, it does have the same connotation of an older attractive woman.