Push your luck.
To take a big risk hoping to achieve success. "I pushed my luck with that project and the tight deadlines. I'm glad it went well in the end."
The luck of the draw.
An outcome based on pure chance. "The luck of the draw had it that I had no choice but to buy a small car instead of my dream car."
Lucky streak.
Lucky streak is a period of continual luck. "I don’t usually win when I play cards but I have won the last 5 games. I hope this lucky streak continues."
As luck would have it.
To say that something happened purely by chance. "We ran out of food at the party but as luck would have it, a nearby takeaway was open that day."
To have the luck of the Irish.
Extremely good luck or fortune. "I can't believe I won the lottery and a radio contest in the same week -I must have the luck of the Irish!
Third time lucky.
To express the hope that, after twice failing to accomplish something, one may succeed in the third attempt. "I made an appointment thinking third time lucky".
A happy go-lucky-person.
Does not plan much and accepts what happens without becoming worried. "He's always been a happy-go-lucky guy."
To hit the jackpot
To achieve sudden or sensational success. "The hungry wolf thought he had hit the jackpot when he discovered a herd of sleeping sheep."
To luck out.
To be fortunate. "I lucked out in my art history class by having a photographic memory and consistent study habits."
To thank one's lucky stars.
To feel grateful for avoiding a bad situation. "I thank my lucky stars that I bought an umbrella right before the thunderstorm."
Fat chance.
Little or no possibility of success. "John hates exercise—a fat chance he has of winning the swim competition!"
That ship has sailed.
A particular opportunity has passed by and now it's too late. "Sorry, that ship has sailed - you missed your chance!"
Sitting pretty.
To be in a good or fortunate situation, especially compared to others who are not so lucky. "He sold his shares so he's now sitting pretty and enjoying life."
Strike gold.
To find exactly what you need; satisfaction, wealth, happiness... "I think she struck gold this time in her new job. It suits her perfectly."
Strike while the iron is hot.
To act immediately because now is the ideal time to do it. "The price of property has dropped. You should strike while the iron is hot."
While the going is good.
To do something before the situation changes and it is no longer possible. "There's a 50% discount. I think I'll subscribe while the going is good."
