USA & UK, 1995—to take a pregnancy test of a type involving urinating on a disposable plastic stick which immediately indicates the result—also, more generally: to take any of various other diagnostic tests of this type
UK, 1911—a sharp blow to the back of the neck—refers to the practice of killing rabbits in this way, and originated in boxing—Australia, 1913: ‘rabbit killer’, also ‘rabbit-killer punch’
a person exercising an insidious or corrupting influence, especially over a ruler, government, etc.—UK, 1917—refers to Grigori Efimovich Rasputin (circa 1869-1916), mystic and influential favourite at the court of Tsar Nicholas II
UK, 1923—the north-east corner of Hyde Park, London, near Marble Arch, where public speaking and debate are traditionally permitted with minimal restriction—by extension: any location where public speaking and debate are permitted or encouraged
a term of abuse or disparagement, especially for a man’s wife or female relative—1616 in Epicœne, or The Silent Woman, by Ben Jonson—perhaps in reference to an encumbrance, like a clog (i.e., a heavy piece of wood) tied to a dog
UK, 1869—a mechanised full-size model of a bull, simulating the movement and behaviour of a bull (particularly in a corrida), used in public entertainments
1599—a person with whom one chats, a partner in informal or friendly conversation—now, more specifically: a person with whom one communicates via online chat or messaging
UK, 1898—a small oblong piece of filleted or minced fish coated in batter or breadcrumbs, typically fried or grilled—but originally designated various dishes