Take a flyer (on something) American verb phrase
If you take a flyer (on something), you take a chance, risk, or gamble on it.
You are taking a flyer on this investment because that company is quite small.
After he took a flyer on a game of cards, he started feeling regretful.
I didn't take a flyer on this product. I read reviews about it before purchasing.
Nothing but fortunate chance
This proverb advise you already have your own valuable thing, so you don't need to take the risk of getting something better, which may cause you to lose everything.
The last opportunity for one to achieve something
A second opportunity
1. To grab or make the most of the opportunities when they happens or exists
2. When you take your chances, you take a risk because you may fail.
The verb "take" must be conjugated according to its tense.
The origin of this phrase is not clear.