FMUTA

F*** Me Up The Ass

Believe it or not, it's an expression used by millennials to imply "Oh my gosh, you've got to be kidding!" So is DIAF but it's clearly meant to be sarcastic.

Online jargon, also known as text message shorthand, used primarily in texting, online chat, instant messaging, email, blogs, and newsgroup postings, these types of abbreviations are also referred to as chat acronyms.  

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See also : FMTYEWTK  
NetLingo Classification: Acronyms and Text Message

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