working like a dog
No, but it's slang. An idiom is a phrase that doesn't make any sense unless you know the definition. "Stop talking crazy" means "stop speaking nonsense" or "stop speaking like a crazy person would."
No. This is not an idiom. An idiom is a group of words whose meaning is different from the meanings of the individual words. So it is not easy to know the meaning of an idiom. For example 'Let the cat out of the bag' is an idiom meaning to tell a secret by mistake. The meaning has nothing to do with cats or bags. "Treat others like you would want them to treat you" is a saying,
That is not an idiom. When you see the word LIKE, you're looking at a simile.
No, if something is "like" something else, it is a simile.
It means that she is crazy- mad like a dog.
behave badly...
That's not an idiom. It means just what it looks like -- something is fit for you to eat.
The LITERAL meaning is that a light has been extinguished and it is dark.
no its a simile...an idiom is something like "spilled the beans" where you cannot guess the meaning by looking at the words
It means that everybody like what they like and have their own opinions about things.
You seem to be asking about a distorted version of the idiom "on cloud nine" meaning, extremely happy (cloud nine being a cloud in heaven, or something like that).
stood there staring at her