Yoo-hoos are often associated with celebratory shouts or calls, and there are several synonyms that can be used in their place. Some popular alternatives include cheers, hoorays, whoops, hurrahs, and shouts of joy. Depending on the context, other words such as cries, calls, and yelps may also be appropriate. These synonyms can convey different levels of enthusiasm and emotion, depending on the tone and volume used. Overall, the use of synonyms for yoo-hoos can help add variety and depth to the language we use to express excitement and joy.