A fish out of water is in an alien environment. If you say that someone is "a fish out of water," then you are saying they are out of their element. Stan the accountant was a fish out of water at the plumbing convention.
"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
I have bigger fish to fry is an idiom. An idiom is a phrase that is commonly used in certain areas that may have a funny meaning.
A square peg in a round hole.
It's not an idiom because you can figure out the meaning by context - you are willing to go through dangers or hardship for something or someone.
"To be" is not an idiom - it's a verb.
Smoking pipe that uses water to filter smoke.
You would say they were "full of themselves" or "blowing their own horn."
First, when you see the phrase AS ___ AS ___ it is A Simile instead of an idiom. It is easy to figure out the meaning of a simile. Water flows quickly, so the simile means that whatever it is, it's as fast as water flowing.
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.
This is not an idiom. An idiom is an expression whose meaning cannot be deduced from its elements. To go through fire and water for someone is easily understood to mean to make a special effort and to undergo difficulties for that person's sake.
The idiom "to hold water" means that an argument, theory, or idea is sound, valid, or credible. It suggests that the reasoning or evidence presented is strong enough to withstand scrutiny. If something does not hold water, it indicates that it is flawed or unconvincing.