A party, with alcohol and sometimes drugs, held by underage teenagers way out in a remote desert area, where it's unlikely to attract the attention of the Sheriff's Department. Usually there is a bonfire for light and heat in cold weather. Synonym is "boondocker
"; and "boonie" is a shortened version of the term "boondocker." These two terms are common in the southwestern United States, especially in Tucson, Ariz. "Boonie" and "boondocker
" have been in use at least since the 1950s.
Man, I got wasted at that boonie last night.