"Cheesed off" is a phrase that refers to feeling frustrated, angry, or annoyed due to specific circumstances or actions of others. It is a common expression used in everyday language to convey one's discontentment or dissatisfaction with something. However, there are various synonyms that can be used to replace "cheesed off," such as exasperated, irritated, furious, agitated, irked, disgruntled, incensed, provoked, infuriated, and fed up. These words are all classified as negative emotions and can be used in any situation where one feels angry or upset. By using these synonyms, one can add variety and depth to their language, making their expression more impactful.