The term "u-ey" is a slang term that is used to describe the act of making a U-turn. However, there are several different synonyms that can be used to describe this maneuver. One common term is a "turnaround," which is a more formal way of referring to a U-turn. Another term that is frequently used is a "flip around," which can be used to describe a driver quickly turning their car around to go in the opposite direction. Other synonyms may include a "180-degree turn," a "reverse," or a "hairpin turn." Ultimately, the term that is used will depend on the region and the context in which the turn is being made.