‘brain rot’: meaning and origin

a perceived loss of intelligence or critical thinking skills—apparently coined after ‘potato rot’ by the U.S. author Henry David Thoreau in Walden; Or, Life in the Woods (1854)

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‘silent policeman’: meaning and origin

USA, 1913—a small structure placed at the centre of a road junction which allows vehicles travelling in different directions to cross the junction safely at the same time by driving around the device in the same direction

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‘barbudo’: meanings and origin

USA, 1959—in reference to the Cuban Revolution (1953-59): a revolutionary soldier under the leadership of Fidel Castro—a borrowing from Spanish ‘barbudo’ (literally: a bearded one)

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