I found the meaning from that word. But thanks 
BrokenLens Forums
ssunsett
mewmore
oh- if your talking about the other one, meaning:
https://www.collinsdictionary.com/us/dictionary/english/dong
if you scroll down it shows the slang.
https://www.merriam-webster.com/dictionary/dong
https://www.collinsdictionary.com/us/dictionary/english/dong
if you scroll down it shows the slang.
https://www.merriam-webster.com/dictionary/dong