I understand that encountering new words or phrases can be intriguing, but it's important to be mindful of the impact and potential harm that certain terms may have. The word "mamzer" is a derogatory term used to refer to someone born out of wedlock in some cultural contexts. It's best to promote kindness and understanding rather than using derogatory language towards others. If you come across unfamiliar words, I encourage you to seek knowledge in a positive way and embrace empathy in your interactions with others.