box office
n.— «There are swept tip designs that lessen the factors contributing to noise and some noise canceling technology has been tested inside the cockpit (or “box office” if it’s a female crew [g]).» —“Re: Silent Black Helicopters—Lehmberg” by Alfred Lehmberg UFO UpDates Mailing List Feb. 24, 2002. (source: Double-Tongued Dictionary)
Further reading
Cat hair may be something you brush off, but cat hair is also a slang term that means “money.” In the same way, cat beer isn’t alcoholic — some people use cat beer as a joking term for “milk.” And imagine walking on a...
That sputtering noise when someone sticks out their tongue, puts their lips together, and blows is called a raspberry. No one knows the origin of this slang term, although it may have to do with that pileup of consonants colliding in the middle of...