Here's one more Korean idiom to write down - 함흥차사. This idiom has a pretty interesting story, and is useful to know. Even if you don't use it yourself when speaking, you might find it written in a book, or hear someone else use it when speaking.
Check it out here~.
I'm also open to suggestions for new videos, so leave your comments below if you have an idea you'd like me to make a video about. Thank you!