pressure cooker
US /ˈpreʃ.ər ˌkʊk.ər/
UK /ˈpreʃ.ər ˌkʊk.ər/

1.
a pot in which food is cooked quickly under steam pressure
:
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She cooked the stew in a pressure cooker to save time.
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My grandmother always used a pressure cooker for tough cuts of meat.
2.
a situation or environment that causes a lot of stress or anxiety
:
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Working in that startup was like being in a constant pressure cooker.
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The final exams put everyone in a real pressure cooker.