Unsure whether you meant walla, but just in case this is what you meant: It's "voila", from French "et violà". https://www.collinsdictionary.com/dictionary/fr

Unsure whether you meant walla, but just in case this is what you meant: It's "voila", from French "et violà". https://www.collinsdictionary.com/dictionary/french-english/et-voil%C3%A0 https://www.collinsdictionary.com/dictionary/french-english/...