Juice is the liquid that comes from fruits, vegetables, or meat. As a verb, to juice means to squeeze or press something to get its liquid out.
From Old French “jus” meaning “broth” or “juice”, from Latin “jus” meaning “sauce” or “liquid from meat”. It broadened in English to include the natural liquids of fruits and vegetables.
In slang, “juice” can mean power, influence, or energy, as if people themselves were batteries. The idea that your “juice” can run low or be recharged quietly borrows from this food word. Language keeps turning physical things into metaphors for social power.
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