There is a fair possibility that the list of the most offensive words and phrases you have is filled with the usual suspects. But, it seems like there is always a new term or phrase that is offensive, or that someone is upset by something you previously believed to be acceptable.
Remember that it can also be exceptionally draining to constantly experience fear or hurt due to racist, discriminating, or just plain cruel comments. Even if you don’t feel awful about making a derogatory joke, it’s possible that someone else feels affected by it, and you might be the one who continues to cause them harm.
If someone gets offended by a remark you believe to be neutral, go over the conversation with empathy and try to understand them.