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1.
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).
Yo bro, AppleBoo? I got the tree and juice.
by Johnnyboi159 December 06, 2010
 
2.
The state or condition of being drunk and high simultaneously. Commonly results in idiotic actions and regretted hook ups.
Person A: Dude, what happened last night?

Person B: HAHA, you were so appleboo, you hooked up with the fat chick and kicked shannon's cat.

Person A: No way!!!
by B-Fife November 22, 2009