Cnhh is a word made up by aphrogdite, in a discord server about the famous youtuber ClashB-Lizzy.
This word was created when aphrogdites keyboard messed up on their ipad, so they spammed and then the phrase "cnhh" was born
It is usually used as another word for "cool"
Person 1: hey did you watch lizzys most recent stream?
Person 2: yea! It was very cnhh!