Deny Access To

Originally a technical term for " Deny Access To" (which is a return code seen on a Web page to indicate you don't have the necessary permission to access the server), in slang to say "403" is to imply someone is out of their league, as in "Don't even go there, she's 403, dude." It can also refer to being punished for something, such as "After last night, he is 403."

See also : 404  Not Found 404  
NetLingo Classification: Acronyms and Text Message

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