Idioms
An idiom is a group of words, or in other words, a phrase that has a meaning other than its literal meaning of the words in it.
Idiom:
not know whether/if one is coming or going
Meaning:
to be very confused
Example:
My friend did not know whether he was coming or going after the long airplane flight.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is defined as - a group of words whose meaning is different from the meanings of the individual words.