| Idiom | Meaning | Example | 
| over the hill | 
too old, on his last legs
 | 
At 35, he was over the hill -  too old to play pro soccer.
 | 
| over the hump | 
past the difficult part, into an easier phase
 | 
After saving $2000, I was over the hump. I could pay the tuition.
 | 
| over the rainbow | 
eccentric, weird, a bit off, spinny
 | 
Aunt Freda? She's been over the rainbow for years, poor lady.
 | 
| over the top | 
too much, exaggerated, ham it up, a send-up
 | 
His interpretation of Hamlet was over the top. Hamlet is a tragic
figure, not a comic figure.
 | 
| over with | 
completed, finished, over and done with
 | 
Now that the trial is over with, we can return to a normal life.
 | 
| overdo it | 
work too hard, become too tired
 | 
The doctor said I can work in the garden if I don't overdo it.
 | 
| owly | 
cranky, unco-operative, negative
 | 
When Herb gets drunk he gets owly - kind of stubborn.
 | 
| own medicine | 
giving what you got, tit for tat  
 | 
She hurt me so I'll hurt her - give her some of her own medicine!
 | 
| own up | 
admit a mistake, come clean
 | 
If Jason is involved in the crime, he'll own up. He'll tell the police.
 | 
| own worst enemy | 
create our own problems, prevent our own success
 | 
A smoker is his own worst enemy. He's harming himself.
 |