M8 or M8s

Mate -or- Mates

Traditionally it is a British, Irish, Australian, or other English-speaking expression for "friend" whereas in the U.S., it usually refers to your W9 or H9.

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 : LJBF  
NetLingo Classification: Acronyms and Text Message

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