The term 'clucking sounds of disapproval' is a phrase used to describe the sound made by a person when they are expressing disapproval or dissatisfaction. It is often associated with chickens, as they make a similar sound when they are displeased. The acronym TSKS is used to represent this phrase, and it stands for 'Tut-Sigh-Kiss-Sigh'. This sound is often used to express disapproval or disappointment in a situation.