work up a sweat

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work up a sweat

1. Literally, to perspire due to strenuous physical activity. Ping pong is actually great exercise. You really can work up a sweat after just a few games.
2. By extension, to put forth a large amount of energy or effort into or toward a task. Often used in the negative to indicate the opposite. That test was so easy, I aced it without even working up a sweat.
See also: sweat, up, work
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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References in periodicals archive ?
Grant Williams, 35, worked up a sweat as he launched a bid to set a new standard for performing press-ups.
SIX housemates led by Italian stallion Roberto worked up a sweat yesterday with an early morning workout.