NYB
NYB definition by Slang.net
This page explains what the acronym "NYB" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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Something that is NYB is "not your business." People use this acronym when they want you to stop prying into their affairs. NYB is often paired with BO (back off), GL (get lost), hop off, and in extreme cases, BTFO (back the f*** off).
If you agree that whatever you were asking about was NOYB, you can respond to NYB with NOMBR. If you don't agree, you can continue to get all up in the sender's biz.