Slot machine n. A machine the operation of which is started by dropping a coin into a slot, for delivering small articles of merchandise, showing one's weight, exhibiting pictures, throwing dice, gambling, etc.
... come down later—altogether later— after you and your husband have gone to bed. But I should be much obliged if you would see that the gas people come to-morrow and put my stove in order. It might be done while I am out. That the shilling-in-the-slot machine should go wrong is very unpleasant. It has ... — The Lodger • Marie Belloc Lowndes
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