over the hill

over the hill

Past the peak of one's life or career; too old. Often hyphenated. I used to think that being 40 meant you were over the hill, but I still feel as youthful as ever. The judges are always a bunch of washed-up, over-the-hill singers trying desperately to remain relevant.
See also: hill, over
Farlex Dictionary of Idioms.

*over the hill

 
1. Fig. Inf. escaped from prison or the military. (*Typically: be ~; go ~.) Two privates went over the hill last night. They broke out of jail and went over the hill.
2. Fig. too old (for something). (*Typically: be ~; go ~.) You're only fifty! You're not over-the-hillyet. Some people seem over-the-hill at thirty.
See also: hill, over
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

over the hill

Past one's prime, as in I'm a little over the hill to be playing contact sports. This term, alluding to a climber who has reached a mountaintop and is now descending, has been used figuratively for the decline caused by aging since the mid-1900s.
See also: hill, over
The American Heritage® Dictionary of Idioms by Christine Ammer.

over the hill

INFORMAL
COMMON If someone is over the hill, they are no longer young, and are too old to do a particular thing. It's true some people regard you as over the hill at fifty. If you're an interpreter you might be over the hill at the age of 35. Note: Over-the-hill is also used before nouns. The novel is about an over-the-hill, badly behaved spy. Note: The image is of the top of a hill as the middle of life, so passing over the top of the hill leads downwards to old age and death.
See also: hill, over
Collins COBUILD Idioms Dictionary, 3rd ed.

over the hill

past your best; declining. informal
See also: hill, over
Farlex Partner Idioms Dictionary

over the ˈhill

(informal) no longer young; past your best: Some people think if you’re 30, you’re over the hill!
See also: hill, over
Farlex Partner Idioms Dictionary

over the hill

1. mod. escaped from prison or the military. (see also AWOL.) Two privates went over the hill last night.
2. mod. too old (for something). You’re only fifty! You’re not over the hill yet.
See also: hill, over
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions

over the hill

Informal
Past one's prime.
See also: hill, over
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • get a makeover
  • have a makeover
  • give (one) a makeover
  • third world
  • once in a lifetime
  • double or nothing
  • a nod and a wink
  • a nudge and a wink
  • every woman for herself
  • made to order