“Duff” can mean different things depending on the context. In British English, it is often used to mean something is bad, useless, or not working properly. In some places, it can also mean a soft hit or a fake version of something.
People use “duff” in everyday speech to describe something that has failed or is no good. For example, someone might say a machine is “duff” if it has broken down, or say they gave a “duff excuse” if the excuse was not believable. The meaning is usually informal.
Meaning & Usage
In casual English, “duff” is most often used as slang for something faulty, poor, or ineffective. It is not a very formal word, so you will usually hear it in conversation rather than in official writing.
Examples
“My phone is duff.”
“That was a duff idea.”
“He gave me a duff answer.”
Context / Common Use
The exact meaning depends on how it is used. In many cases, it simply means “bad” or “broken.” In other cases, especially in older slang, it can mean something fake or not genuine.
Is “duff” a formal word?
No. It is informal slang and is mostly used in everyday speech.
Can “duff” mean broken?
Yes. People often use it to describe something that is not working properly.
Is “duff” used in American English?
It is much more common in British English, though people may still understand it elsewhere.
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