skin tenting
n.— «There is a simple way to tell if you are dehydrated, Rodriguez said, and it is a technique called “skin tenting.” In this technique, pinch and lift up the skin on the back of the hand to form a tent, then quickly let it go. The amount it stretches is an indication of its extensibility. The faster it returns to normal, the more hydrated you are. The slower it returns indicates you may be dehydrated.» —“Drink up, it’s hot out there” by James Gilbert Yuma Sun (Yuma, Arizona) May 15, 2009. (source: Double-Tongued Dictionary)
Further reading
We use the term Milky Way for that glowing arc across the sky. But how people picture it varies from culture to culture. In Sweden, that starry band goes by a name that means “Winter Street,” and in Hawaii, a term for the Milky Way...
As we’ve noted, in California’s Orange County, to birdie means “to drink from a bottle without touching it with one’s lips.” Elsewhere this germ-avoidant act is also called airsipping, airing, baby birding. In parts of the UK, you might sky a drink...