Idiomatic expressions are phrases that have a figurative meaning different from their literal interpretation. They are commonly used in everyday language to convey ideas or emotions in a more colorful or relatable way. For example, saying someone "kicked the bucket" means they passed away, not that they literally kicked a bucket. These expressions often reflect cultural nuances and can vary significantly between languages. Understanding idioms is essential for effective communication, as they can add depth and richness to conversations. Examples include phrases like "break the ice" or "spill the beans," which illustrate specific situations or actions in a creative manner.