This is a misled approach. Rather than trying to list out the myriad phrases in our language based on historical prejudice, it's better to just understand that prejudice yourself so you can determine what you want to perpetuate and what you don't. That being said this won't prevent something like this from ever happening again, and sometimes things you would never guess are rooted in white supremacy or other ism. No one knows the full extent of it themselves and no one is expected to know everything. If it happens on occasion and you realize it like this and avoid it in the future it's fine for most people. If you keep saying something you don't realize is messed up and stop when you learn it's messed up, that's also fine. It's only when it's obvious that you know it's wrong but you insist on doing it or get defensive about how it shouldn't be a big deal when it becomes a real issue.