iron maiden
n.— «The lady with the bag proceeded with the rush-hour crowd toward the nearest exit to the street at the uptown end of the platform. There she encountered a pair of what are officially termed High Entrance/Exit Turnstiles, or HEET. In everyday parlance, these revolving portals are called high-wheels, or more colloquially, iron maidens.» —“Our underground gated community” by Michael Daly N.Y. Daily News May 25, 2005. (source: Double-Tongued Dictionary)
Further reading
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There are eight major planets, but more than a million minor ones, including asteroids. If you discover one, you get the honor of naming it. The Dictionary of Minor Planet Names includes minor planets named for rock bands, jazz musicians, poets, and...