The idiom "a snowball's chance in hell" means that something has very little or no chance of happening or succeeding. It is used to express extreme doubt or disbelief about the possibility of something happening.
The phrase is derived from the idea that a snowball would melt in the fiery depths of hell, indicating that the chances of something happening are extremely low or impossible.
For example, if someone says, "I think I can convince my boss to give me a raise," and you respond, "You have a snowball's chance in hell of getting a raise," you are indicating that you believe it is highly unlikely that they will get a raise.
In short, this idiom is used to express extreme doubt or disbelief about the possibility of something happening or succeeding.
• With this economy, there's a snowball's chance in hell that I'll be able to retire comfortably.
• There's a snowball's chance in hell that I'll ever forgive him for what he did to me.
• I have a snowball's chance in hell of finishing this difficult puzzle on my own.
• After missing so many classes, you have a snowball's chance in hell of passing the final exam.
• I knew I had a snowball's chance in hell of winning the lottery, but I still bought a ticket.
• We have a snowball's chance in hell of finding a cure for cancer, but we must keep trying.