One of the mysteries of the English language finally explained.
Each of a pair of shoes worn or designed to be worn while running; (now) specifically = "trainer".
to put on one's running shoes
And variants: to prepare oneself for an event or challenge.
to give (a person) (hisor her) running shoes
Originally and chiefly NZ: to dismiss (a person), especially from political office.
Mid 17th century. From running + shoe.
running shoe/ˈrʌnɪŋ ʃuː/
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