Sweat Sweat, v. t. 1. To cause to excrete moisture from the skin; to cause to perspire; as, his physicians attempted to sweat him by most powerful sudorifics. 2. To emit or suffer to flow from the pores; to exude. It made her not a drop for sweat. --Chaucer. With exercise she sweat ill humors out. --Dryden. 3. To unite by heating, after the application of soldier. 4. To get something advantageous, as money, property, or labor from (any one), by exaction or oppression; as, to sweat a spendthrift; to sweat laborers. [Colloq.] To sweat coin, to remove a portion of a piece of coin, as by shaking it with others in a bag, so that the friction wears off a small quantity of the metal. The only use of it [money] which is interdicted is to put it in circulation again after having diminished its weight by ``sweating'', or otherwise, because the quantity of metal contains is no longer consistent with its impression. --R. Cobden.