To mash the brake or mash the elevator button comes from a Southern instance of mash meaning “to press something hard.” This is part of a complete episode.
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According to Gobsmacked: The British Invasion of American English (Bookshop|Amazon) by Ben Yagoda, the word smarmy, meaning “unctuous” or “ingratiating,” may come from a 19th-century magazine contest, in which readers sent in...
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