до десятого пота

• ДО СЕДЬМОГО <ДЕСЯТОГО> ПОТА работать, трудиться и т.п. coll

[PrepP; these forms only; adv; fixed WO]

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⇒ (more often in refer to physical labor) (to work) until one is extremely tired, fatigued:

- X работал до седьмого пота{{}}≈ X worked himself into the ground;

- X worked himself into a lather;

- X sweated his guts out working.