sharp eye means see small to small things easily
what is a idiom about a cat
Don't be too curious!
Yes. An idiom is a phrase or expression whose meaning is figurative rather than literal. The phrase has a meaning other than the usual meaning of the words.
To upset things in a spectacular way.
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,
I do believe you heard the idiom wrong. It's "apple of one's eyes." See the link below for the meaning.
An example of an Idiom for Insincerity is: The cat weeping over the mouse [that he has just eaten]. a wolf in sheep's clothing pulling the wool over someone's eyes
No because you can figure out the meaning by context. It is slang. The meaning is being afraid. A scaredy cat is someone who worries and is scared of a lot of things.
"All eyes" is an idiom meaning that someone's eyes were wide open in shock or fear. He was all eyes as the monster climbed out of the closet.
The phrase "laid eyes on" is an idiom.
"To be" is not an idiom - it's a verb.
Pulling the wool over one's eyes means fooling them -- they are saying "don't try to fool me."