flugtag
n.— «More than 30 human-powered aircraft designs will take part in Red Bull’s Flugtag competition on Aug. 3, behind the Canadian Museum of Civilization in Gatineau. It’s part air-show spectacle and part Jackass stunt. Flugtag is a German word meaning “flying day,” as in the day you fly off to holiday. The competitions have been held in major cities around the world. Teams of five people must build and “fly” a contraption with a maximum wingspan of nine metres and a maximum weight of 200 kilograms.» —“It’s a bird, it’s a plane, it’s Flugtag” by Tim Shufelt Ottawa Citizen Aug. 2, 2008. (source: Double-Tongued Dictionary)
Further reading
The German phrase Der Bus hält an jeder Milchkanne literally translates as “The bus stops at every milk can,” and refers to a bus that stops at every little out-of-the-way town. This is part of a complete episode.
Related
How hot is it? Well, poet Dylan Thomas found lots of memorable ways to describe a heat wave. In one letter to a friend, he wrote that it was so hot “My brains are hanging out like a dog’s tongue.” And: pestering country music stars...
While Flugtag may be used to mean “the day you fly off to holiday”, this meaning wouldn’t have spontaneously come to my mind. By far the primary meaning is “air show”. (I’m a German native speaker.)
Also, the famous Austrian energy drink company held the first Red Bull Flugtag in 1991 (dixit Wikipedia).