It's a YouTube meme,which can also be spelled "OVER NINE WHUZAAAND". It usually has a standard animation, from one scene of DragonBall Z, from where it comes. It is a scene of the Prince of Saiyans, Vegeta, standing with another saiyan, Nappa, while looking at another saiyan, Goku, the good guy, who is powering up. Then, Nappa asks Vegeta: "Vegeta,what does the scouter say about his power level" because he does not have a scouter himself, and Vegeta replies: "IT'S OVER NINE THOUSAAAND" with a dynamic altitude and many A's. The original Japanese clip was 8, not nine thousand, but they translated it wrong. It's usually used on youtube about how many views, favorites ratings a video has, or as a reply to other users who ask how many,much,long etc., is very annoying and users reply to those who say it very rudely.
Youtuber A' (Good guy) : "Please tell me how much does a McChicken from mcdonalds cost, I beg you, don't say "Over nine Whuzaand" and stuff, just the real price!"
Youtuber B' (Kinda good guy): "OVER NINE WHUZAAAND"
Youtuber A': 1st case: What 9000? There's no way that can be right!
2nd case: What's this?!? No scouter! No breaking! No Nine thousand! Hercule only! Final destination!
3rd case: IMMA FIRING MAH LASOR! BLAAAAAAARGHHHHH! Shoop da whoop!
Another youtuber a': Your video views are over nine thousaaand
Another youtuber b': Reply to another a': STFU YOU F***ING AS**OLE, WE KNOW HOW TO COUNT, GO F**K YOURSELF, GET A LIFE AND STOP POSTING USELESS COMMENTS ON VIDEOS.
That another a': WTF?