The phrase "give lip" can be used to describe someone who talks back or shows a lack of respect towards authority or rules. Some synonyms for this phrase include "backtalk," "sass," "talk back," "disrespectful speech," "impudence," and "impertinence." Other related words include "cheek," "insolence," "rudeness," "defiance," and "uncooperativeness." It's important to remember that giving lip is generally seen as a negative behavior and can lead to consequences. Instead, it's recommended to show respect and communicate in a respectful manner, even when there is a disagreement or conflict.