butt hutt
n.— «Some boys end up in unsupervised group rentals they call “butt huts” because of the crowded sleeping, while others live in cars or end up in jail.» —“Boys Cast Out by Polygamists Find Help” by Erik Eckholm in St. George, Utah New York Times Sept. 9, 2007. (source: Double-Tongued Dictionary)
Further reading
If you speak a second or third language, you may remember the first time you dreamed in that new tongue. But does this milestone mean you’re actually fluent? And a couple’s dispute over the word regret: Say you wish you’d been able...
The slang term 4-55 air conditioning is means cooling a car by driving fast with all the windows down. This is part of a complete episode.
Related
“Butt hut” has also been used to describe an outdoor shelter where smokers are allowed to light up, for example: http://no-smoking.org/feb02/02-13-02-2.html