The idiom "whistle in the dark" means to try to stay positive or hopeful in a difficult or uncertain situation, even though you know that the situation is not good. It is like trying to make yourself feel better by pretending that everything is okay, even though you know it is not.
For example, if someone is lost in a dark forest and they start whistling to keep their spirits up, they are "whistling in the dark." They are trying to stay positive and hopeful, even though they are lost and scared.
We use this idiom when we want to describe someone who is trying to stay positive in a difficult situation, even though they know that things are not going well. It can also be used to describe a situation where someone is pretending that everything is okay, even though they know it is not.
In summary, "whistle in the dark" is an idiom that means to try to stay positive in a difficult or uncertain situation, even though you know that things are not going well.
• The company's new product launch was unsuccessful, and they're just whistling in the dark trying to figure out what went wrong.
• The detective was whistling in the dark when he tried to solve the murder case without any solid evidence.
• I'm not good at math, so when I try to do algebra, it feels like I'm whistling in the dark.
• The politician's promise to fix the country's economy seemed like he was just whistling in the dark, as no one believed he had a real plan.
• I don't know how to swim, so I'm just whistling in the dark when I go to the beach.
• The artist's experimental work was misunderstood by many, but she continued to create, knowing that sometimes you have to whistle in the dark to bring something new to light.