AppleBoo is a slang term utilized when you were getting high and intoxicated at the same time. Initial part "Apple" matches the drink apple liquid that's developed by mixing a Rockstar energy beverage and Bacardi rum thoroughly for a smooth style of exactly what can simply be referred to as apple liquid. "Boo" was made based on the areas of the fog of smoke as a resemblance to a ghost's "smokey" look. Having a night of AppleBoo suggests one is smoking a substance that gets you large and drinking a strong blended beverage within an amount of time (age.x. a couple of hours to complete performing both objectives). The state or condition of being intoxicated and high at the same time. Commonly leads to idiotic activities and regretted hook ups.