Wiktionary
jungle juice
n. (context slang English) An improvised mix of liquor, often with fruit juices, usually served for group consumption.
Wikipedia
Jungle juice
Jungle juice is the name given to an improvised mix of liquor that is usually served for group consumption. There are countless recipes and even websites devoted solely to jungle juice. The term has also been used for similar less-than-reputable alcoholic concoctions.
Usage examples of "jungle juice".
I went back to my car, drove down the hill to the Jungle Juice, and used their phone book to look up Riley Ward & Associates.
The sign over the door read JOE'S JUNGLE JUICE, and the building was decorated to look like a grass but from a jungle-movie set.
The jungle juice cons made out of potatoes and raisins, and some good stuff that got smuggled in.