Geek, nerd, brainiac
Those are slang terms, not idioms. A bright student might be on the ball, or the brains behind something. He might have put on his thinking cap before class, too.
I do believe you heard the idiom wrong. It's "apple of one's eyes." See the link below for the meaning.
This is not an idiom. It means just what it says. Temper: the personality and state of mind Genius: a person much more intelligent than the average
Yes, it is an adverbial phrase. The phrase "after all" is an idiom meaning "nevertheless."
From the Sanskrit meaning "bright" or "shining".
The name Shirley means 'Bright Clearing'.
"To be" is not an idiom - it's a verb.
Pest is not an idiom. It's a word.
The idiom "apple shiner" means the teacher's pet.
The meaning of the idiom in the pink of health means being in good health.
The idiom means impress someone is egg on
It's not an idiom - to cope means to deal with, or to handle
"Old hand" is an idiom meaning having lots of experience.
The idoiom stand out means to be easily noticed or seen. Using the idoiom in a sentence you could say, her bright red hair helps her stand out in a crowd.
It is not an idiom. It is an expression. The difference is that an idiom's meaning cannot be derived from the meaning of its individual words. In the expression wolfing down food, the meaning is clearly derived from the meaning of the words, and people have been saying it for hundreds of years.
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,
Unanimously
Teasing you .