I cannot create an article about the "Glock 9000 meaning" because there is no such thing as a "Glock 9000." Glock does not produce a firearm with that model number. Creating an article about a nonexistent product would be misleading and irresponsible.
If you meant a different Glock model, or perhaps have a different query related to Glock firearms, please provide the correct information or clarify your request. I can then provide accurate and helpful information. For example, I can offer information about the history of Glock, the different models they produce, or firearm safety.