4 meanings: 1. an exclamation uttered to startle or surprise someone, esp a child 2. a shout uttered to express disgust,.... Click for more definitions. What Does Boo Mean as a Slang Word? Boo can also be used as a slang term of endearment to reference your significant other. As in, “I went on a date with my boo ” or “Me and my boo -thang are headed to the amusement park today.” Used as an affectionate term, boo is synonymous with another slang word, bae. The term bae is used primarily by the younger generation to reference the most important person in their life, putting them before anyone else. What Is the Etymology of Boo ? Dating ... Boo is a slang term that can mean a ghost, a significant other, a close friend, or a playful tease. Learn about its origins, different contexts, case studies, statistics, and regional variations. Boo can be an interjection, a noun, or a verb to express contempt, disapproval, or fright. It can also mean a boyfriend or girlfriend, or marijuana. See different sources and examples of boo .
