What is the meaning of the phrase “over the hill”?
When someone uses the idiom “over the hill” to describe another person it simply means that the other person is too old to perform a specific task or activity. It also usually implies that the person was once really good at something, but no longer is. A phrase that is synonymous with “over the hill” is “past his/her prime”.
Example of “over the hill” in a sentence
"Bob was told that he was over the hill and could no longer handle the responsibilities of his old job, so he was given a job with less responsibilities."