The supposed spelling of "WIFU" has no actual meaning or usage in the English language. IPA (International Phonetic Alphabet) is a system of phonetic notation that allows linguists to represent sounds of any language in a standardized way. In IPA, "WIFU" could be transcribed as /ˈwiːfuː/, representing the sounds of the English letters "W," "I," "F," and "U." However, as it is not a real word or combination of sounds, it has no practical application.