9
Parent in room
Example
hey, did you finish watching the new episode?
9, can't talk about it now
ok, let me know when you're free so we can discuss!
9 definition by Slang.net - The Slang Dictionary
This page explains what the slang term "9" means. The definition, example, and related terms listed above have been manually compiled and written by the Slang.net team.
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9 is a discreet code used in online chat sessions to signal the presence of a parent in the room. Kids and teens often use it to alert their friends that adult supervision is in effect, prompting them to change topics or watch their language.
The code dates back roughly to the early 2000s, emerging during the rise of SMS texting. The concise code helps young users maintain privacy when chatting online, letting participants know to shift gears. It is one of many terms that incorporate 9, including Code 9, CD9, CD99, and C9.