Please,... Who knows the meaning of this common exclamation "Oko ko ko o" what does it mean when one says it?

I welcome ideas from all

What I mean by pin is that, when contacted Facebook to change my password, Facebook sent me a reset password code but in order to be sure if it's Facebook that sent it, I apply 3 times and I found that it was the same very number e.g (102368) Facebook resend even up to 5 times, it's unlike Facebook. I thought Facebook usually send a different reset code every time you try to change the password, but this very one is the same code, making me to suspect that it's the Person who hacked the account that is sending me that code to enter. Now, if I search for my fb account with my phone number or name it will say it did not match the search. I'm totally devastated. I contact Facebook but no response..

Please, Someone hacked my Facebook account by using my phone to change my Facebook password and collecting my Facebook Reset Code Pin to log me out.. I have tried by clicking " Forgot Password" in order to receive a new Facebook reset pin but I'm getting the same Facebook pin No being sent to me which I believe is still the handwork of the hacker, please how can retrieve my Facebook Account back?

I could remember the song having lyrics such as.. " mama tete oyoyo" I'll need help to either get the real title of the song to download it or someone could help direct me on how to get it please

Please, I need help.
Who have Idea of how these educational bloggers put up educational news of different universities on their blog?
I'm considering starting an educational blog, but don't have a clue of how they are always current with these educational news that they frequently update in their blogs. I need someone to school me on that please.