Golly/ˈɡɑːli/ Definition 1 of 2Pro Tip 1/3Informal Usage Use 'golly' in casual conversations, not in formal settings such as job interviews or academic papers. Golly, this park is beautiful! Pro Tip 2/3Emotional Expressiveness 'Golly' conveys a sense of innocence and is often used to show unguarded emotional reactions. Golly, I never expected a puppy for my birthday! Pro Tip 3/3Outdated Expression 'Golly' might sound old-fashioned or quaint to some listeners, as it's less common in modern slang. Golly, these old records sound amazing even today!