What a screw意思
"What a screw" is not a common English phrase and it's not immediately clear what it might mean without more context. However, if you're looking for the meaning of "screw," it can have several different meanings depending on the context:
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As a piece of hardware: A screw is a type of fastener with a helical ridge, known as a male thread (external thread). It is used with a complementary thread (internal thread) in a nut or an object that has the internal thread formed into it.
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As a verb: To screw something means to fasten it using a screw or screws. It can also mean to cheat or to ruin something, often used in the phrase "to screw up."
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Slang: In some contexts, "screw" can be used as a vulgar slang term for sexual intercourse.
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Slang: In British English, "screwed" can mean to be in a difficult situation or to be exhausted.
Without more context, it's difficult to determine the exact meaning of "what a screw" in a particular sentence or phrase. If you can provide more information or the full sentence in which you encountered the term, I would be able to offer a more precise interpretation.