He's been around quite a while now, too long for it to be just dumb luck.
The only reason he hadn't got killed in the last war was dumb luck.
Or worse, someone would probably find him through dumb luck.
He didn't, but once again dumb luck was working in his favor.
If you weren't dead yet, that was your dumb luck.
"But at least we'd have a chance for dumb luck to put us there!"
Just dumb luck we didn't camp on top of it in the dark!
If you were to be believed this was not good management but just dumb luck.
On the other hand, the people outside Florida are calling it dumb luck.
The fact that they weren't dead was probably mostly a result of dumb luck.
But in the end we had a stroke of luck.
And a real stroke of luck, that he should have known his weight exactly.
That was a stroke of luck, as it turned out.
If there is not stroke of luck, we are lost.
Or have we just had a stroke of bad luck?
What a stroke of luck to get another date with her!
I'm on the good side: I've never yet had a real stroke of bad luck.
But guess what it turned out that getting cut was a great stroke of luck.
We'd never have known anyone had been there except for a stroke of luck.
But in the last few days, we've had a stroke of luck.
We had a little bit of luck on our side.
Now all he needs is a little bit of luck.
With a bit of luck I should be able to move in pretty soon.
And with a little bit of luck, you won't be here when I come back.
With a bit of luck it won't be long now.
With a bit of luck, I can bring them both down.
In both he needed a bit of luck to see him through.
I have had a bit of luck while you were away.
Another bit of luck, and no one would see them.
Sometimes you just need a little bit of luck to go your way.