egg-beating
n.— «Players are never allowed to touch the bottom of the pool and must tread water for the duration of a game. In order to do so, they employ a water-treading technique called “egg-beating.” The players assume a sitting position in the water and rotate their legs in opposite directions. This method frees up the players” hands while keeping their position stable in the water.» —“Breathlessly, Tech polo splashes on” by Neal Turnage Roanoke Times (Virginia) Apr. 6, 2008. (source: Double-Tongued Dictionary)
Further reading
If you take up texting and social media late in life, there’s a lot to learn! A twenty-something wants advice getting her dad up to speed on memes, Instagram, and animated images. Plus, when you’re on a long road trip, what do you call...
Sure, there’s winter, spring, summer, and fall. But the seasons in between have even more poetic names. In Alaska, greenup describes a sudden, dramatic burst of green after a long, dark winter. And there are many, many terms for a cold snap...