Where does "Sweating Like a Pig" come from? | HistoryNet MENU

Where does “Sweating Like a Pig” come from?

By Mr. History
9/26/2017 • Ask Mr. History

Where does the phrase “sweating like a pig” come from?

Thanks,

Sandy Stinson

 

???

 

Dear Ms Stinson,

The expression dates to the days of industrial steel production and refers to pig iron, which was shaped in molds that had the pieces branching off to look like piglets suckling on a sow. Once produced, pig iron was not cool enough to move without burning anything it touched until it reached a point at which water vapor condensed on its surface, producing “sweat.” Hence, “sweating like a pig.” As for the barnyard animal, it doesn’t sweat much—not when there’s some nice mud to keep it cool.

Sincerely,

 

Jon Guttman

Research Director

World History

www.historynet.com

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