berate someone
To nurse a grudge is to have a long lasting feeling of resentment over a slight, or insult, etc, someone did to you.
I can't find any references to "walk on" someone - perhaps you are thinking of "walk over" someone. This idiom means to ignore someone's feelings and treat them with contempt, or to treat them without respect. In sports, you might use the idiom to mean that your team had an easy victory, though that is not as often used. Usually, if you say "He walked all over his father," you mean "He treated his father as if his father had no importance."
It's not an idiom exactly. Romans used to throw Christians into an arena with lions as a form of execution. The phrase has come to mean any situation where someone is put into a situation where there's no way for them to succeed, or into a situation that's far over their head.
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
It will never happen or is highly unlikely to happen
this simply means...... you or what you have today could possibly not be there tomorrow. simple.
The idiom means that the person over-indulged in whatever food or drink was provided, consuming more than was polite or prudent.
It is sometimes said that if you deceive someone you have pulled the wool over their eyes.
Head over heels is an idiom because the meaning does not match what the words are saying.
This isn't an idiom because you can figure it out if you look up the word "pins." It is a SLANG term meaning legs, so you knocked him over.
In a difficult situation that causes people to be worried and upset over something or someone
It means to create a huge fuss over, or to make a big deal about.