There are several synonyms for the term "goofy holler." One of the most common synonyms is "yodel," which refers to a high-pitched, wavering scream often heard in mountainous regions. Another synonym for the term "goofy holler" is "whoop," which is a loud, exuberant shout often used to express excitement or joy. A third synonym for the term is "holler," which is a loud, cry or yell often used to grab someone's attention or to communicate across a distance. Lastly, another synonym for the term "goofy holler" is "huzzah," which is a shout of encouragement or approval often used at celebrations or events.