it means chilling or to be chill

The new way to say "rad," "chln" or just "chill" is slang to say something is cool. A person, situation, or thing can be chill, and it doesn't necessarily mean relaxed or calm.

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 : geek  N2MJCHBU  NMHJC  kewl  chillaxin  
NetLingo Classification: Acronyms and Text Message

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