Sentences have a literal meaning, whereas, idioms have a figurative meaning.
A literal meaning means actual meaning of the sentence.
Figurative meaning is a combination of words which means something different than the individual words do.
Meaning
It refers to someone who is extremely angry. The meaning is to become mad or foolish, mentally ill or insane.
Example:
– The noise from the crackers made the dog go nuts.
– I went nuts as my wedding gown got soiled.
Meaning
A person who stays up at night is called a night owl. The literal meaning comes from the fact that owls sleep during the day and stay up at night and hunt for food.
EXAMPLE:
I became a night owl after I joined the call center.
He’s a night owl, he sleeps all day.
I am a night owl. I am trying to change my sleep pattern.
Meaning
This idiom means you are allowing someone to do something. You are giving them permission to do something that they ask for.