it means thank you

(pronounced: muh-toh)

In Greek and some Native American languages, mvto (pronounced "muh-toh") means thank you. Online jargon, also known as text message shorthand, used 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 : throw it over the wall  meme  tag  
NetLingo Classification: Acronyms and Text Message

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