AppleBoo is a slang term used when a person is getting high and drunk at the same time. The first part "Apple" goes with the drink apple juice that is created by mixing a Rockstar energy drink and Bacardi rum thoroughly to get a smooth taste of what can only be described as apple juice. "Boo" was created based on the aspects of the fog of smoke as a resemblance to a ghost's "smokey" appearance. Having a night of AppleBoo means one will be smoking a substance that gets you high and drinking a strong mixed drink within an amount of time (e.x. an hour or two to finish doing both objectives).