Back-talking is a form of disrespectful behavior in which someone responds to another person with rude or insolent remarks. The two crossword solutions for this term are sassing (7 letters) and SASSY (5 letters). Sassing is defined as talking back to someone in a disrespectful manner, while SASSY is defined as having an attitude of boldness or impudence. Both words are used to describe someone who speaks in a rude or insolent way.