***** NOT A TEACHER *****
Hello, Mr. Tatarenko:
1. Have you checked out the online Urban Dictionary?
2. It told me that "go hard" means (1) to do something very well or (2) to do something that takes a lot of personal courage.
3. I am 99.99% sure that most native speakers in the United States do NOT use that verb.
4. Here is my educated GUESS as to what the sentence means:
"Watsky sounds like a honkey. [Of course, you know what a "honkey" is. Please do NOT use this term in your speech.] I have listened to him several times. Don't tell anybody about this, but he does a rather [ kind of] good job in sounding like a honkey."
P.S. I believe that most Americans spell it as "honky." As I said, it would be a good idea to NEVER say or write that word.
Student or Learner