An expression in the usage of a language that is peculiar to itself either in having a meaning that cannot be derived from the conjoined meanings of its elements or in its grammatically atypical use of words.
Idiom:
like to hear oneself talk
Meaning:
to enjoy talking rather than listening to other people
Example:
My friend likes to hear herself talk and it is very tiring to be around her.
List of common idioms, their meanings and examples of their usage in sentences
Idioms can be a powerful linguistic tool only when they are used in the right way in the right places.