The term "tush" is a colloquial expression often used to refer to the buttocks or rear end. It is commonly used in informal contexts and can be found in various forms of media, including movies and songs. The word is derived from Yiddish and has been adopted into American English, particularly in casual conversation. In addition to its anatomical meaning, "tush" can also be used as a playful or affectionate term. It is sometimes employed in phrases like "tushie," which adds a lighthearted tone. The term is often associated with childhood language and is frequently used by parents when talking to young children.