Correct spelling for the English word "MFWSJ" is [ˌɛmˌɛfdˈʌbə͡ljˌuːˌɛsd͡ʒˈe͡ɪ], [ˌɛmˌɛfdˈʌbəljˌuːˌɛsdʒˈeɪ], [ˌɛ_m_ˌɛ_f_d_ˈʌ_b_əl_j_ˌuː_ˌɛ_s_dʒ_ˈeɪ] (IPA phonetic alphabet).
MFWSJ is not a recognized acronym or abbreviation in most dictionary sources. As such, it does not have an established dictionary definition. It is possible that MFWSJ could be a personalized acronym or abbreviation used within a specific context or community, but without further information, it is difficult to determine its meaning.
Acronyms and abbreviations often vary depending on the field or industry they are used in. It's worth noting that new acronyms and abbreviations are constantly being created, especially in the realm of internet slang and online communication. These terms often originate from social media, online forums, or texting, where users develop shorthand to save time or enhance communication within their specific virtual communities.
Without more context, it is difficult to provide an accurate dictionary definition for MFWSJ. If you have additional information about the term or its usage, it might be possible to provide a more specific definition or interpretation.