It's a reference to a TikToker/YouTuber called IdkSterling, he uses a ‘ho ho ho’ sound effect in a lot of his videos, as well as Mr. Krabs saying ‘money’, thus the emojis. He reacts to stuff, from dangerous situations to urban legends to true crime. His channel is kinda interesting, but kinda dark. You may be interested in it, idk what you like to watch but bro definitely does his research before doing a video, so he provides good info.