Oceans of [something]:
A large amount or number.
Oceans of people came to the rally.
Odds and Ends:
Small, unimportant things.
I don't know what's in that drawer--just some odds and ends, I think.
Off on the Wrong Foot:
A bad start to a relationship or job (or other responsibility).
We got off on the wrong foot. Let’s start over – I’m sorry.
Off the Hook:
Don’t have to deal with a tough problem anymore.
Your brother told me he broke the statue. You’re off the hook this time.
Off the Record:
It’s understood that whatever is said won’t be repeated, or it won’t be quoted to the person who said it.
Off the record? I think our boss is stupid.
On Pins and Needles:
Nervous about something that is going to happen.
I’m on pins and needles wondering if my girlfriend is pregnant!
On the back burner:
Something that is not a priority.
I put going to the gym on the back burner because I am very busy with a big project at work.
On the Fence:
Undecided. (Think about this literally too. If you’re on a fence, there are two sides.)
I’m on the fence about a lot of things. I never can make up my mind.
On the Fly:
Without thinking about it much.
I learned how to drive on the fly. My dad gave me the keys and said drive!
On the Same Page:
When people agree on something.
He and I are on the same page now. We understand the situation.
A person or thing that is easy to understand.
I can immediately tell when he gets angry. He's an open book.
Out of the Blue:
Something that happens unexpectedly.
It started snowing out of the blue!
Out of this World:
Something that is completely incredible. Super cool. Exciting.
The waterfall I saw in Thailand was out of this world!
Over My Dead Body:
You absolutely will not let something happen.
(Mom speaking to daughter) – Go out with Mike? Over my dead body.
Over the Top:
Too much (excessive).
Don’t you think your clothes are a bit over the top?