A chance in a million phrase
An extremely slight chance or faint possibility.
Thanks to this technology, there is only a chance in a million that you get away with cheating in exams.
It's been a few months since the shipwreck was reported. Finding anyone of the sailors alive now is a chance in a million.
The economy has been in a shambles for two years. It's a chance in a million to see it boom within just a month.
The origin of this phrase is not clear.
Meaning absolutely certain or without a doubt
I am as sure as God made little green apples that Peter's the one for you, you two make a beautiful couple.