"MELFS" is a slang term that refers to attractive middle-aged mothers. The term is spelled using the International Phonetic Alphabet (IPA) as /mɛlfz/. The IPA phonetic transcription breaks it down into individual sounds or phonemes. The first sound is the "m" sound or phoneme, followed by the "ɛ" sound, which is similar to the "e" sound in "bed." The "l" and "f" sounds or phonemes follow, and the word ends with the "z" sound or phoneme. Overall, "MELFS" is a popular internet slang term that describes a type of attractive older woman.