Here's what it tells us about the person:
* They are likely a native speaker: Idioms are deeply rooted in a language and culture. Non-native speakers may not understand them or use them correctly.
* They are comfortable with informal language: Idioms are often used in casual conversation and writing.
* They are trying to add color and expressiveness to their communication: Idioms can make speech and writing more interesting and engaging.
* They are aiming to convey specific cultural nuances: Idioms can reflect a person's cultural background and understanding.
Example:
Instead of saying "I'm very busy," someone might say, "I'm swamped with work." The idiom "swamped" implies a feeling of being overwhelmed, which is more expressive than simply saying "busy."
However, using idioms can also be tricky:
* They can be confusing for non-native speakers: If someone is unfamiliar with the idiom, they may not understand its meaning.
* They can be used inappropriately: Using the wrong idiom in a particular context can sound awkward or even offensive.
Overall, using idioms shows that a person is comfortable with the nuances of their language and wants to convey a deeper meaning than just the literal words.