it means that you are influencing someone,
eg: plz stay away from him, you are casting a long shadow on him.
It actually means that someone has a lot of influence and it is hard to get your own spotlight because that person is so much more influential than anyone else. If your father or mother is a celebrity, or very rich, or even just very well known in your small town, they would cast a long shadow that would make it harder for you to be noticed for yourself instead of just as their kid.
This is similar to the idiom "big shoes to fill" which implies that you have to live up to the accomplishments of someone.
It means to tell a lie or an exaggeration in a story.
The idiom to kills/slaughter the fattened calf basically means that you will celebrate with a friend or relative that you have not seen in a very long time.
It is not an idiom, it means your nose is itching.
idiom means expression like a page in a book
A shadow cast for a fisherman means that when the fisherman casts the line, he has to watch the shadow of the line as it soars in the sky. The reason for this is that the shadow will tell you where all of the fish are hiding. When you see the shadow, you look into the dark area of the shadow and you will see a bunch of little things swimming around. These little swimmy things are called fish! Back in the day, this is how fisherman would know where to cast there lines.
It means to tell a lie or an exaggeration in a story.
It takes a long time to do an important job
The idiom "a dog's age" means a long time or a period that feels particularly long. It exaggerates the notion of time passing slowly, similar to saying "an eternity."
Whatever you do is likely to have repercussions.
A feeling or cause of gloom or unhappiness
The idiom to kills/slaughter the fattened calf basically means that you will celebrate with a friend or relative that you have not seen in a very long time.
A shadow always appears. If you are solid, you create a shadow. If the light source is directly overhead, your shadow may be cast behind you. Just turn your head, and I assure you, your shadow will be there.
It means that someone was very sick, but they recovered after a long battle with illness.
It's not really an idiom. It means "what are you thinking about."
RFP is not an idiom. It's an abbreviation.
It is not an idiom, it means your nose is itching.
Someone who is skinny.