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What's the saddest colour?
Some people say it's blue.
But are there any phrases we can use with blue?
Let's stay with sadness.
If you've got the blues then it just means you're feeling sad.
Don't worry, everyone gets the blues sometimes.
Just leave me alone, I've got a bad case of the blues.
We've done sadness, now let's think about anger.
If someone is screaming until they're blue in the face,
they're angry but they're wasting their time.
We use this phrase with people who are unhappy and complaining a lot.
It means their complaints won't help.
You can scream until you're blue in the face but I'm not going to change your grade.
Sadness and anger are negative.
Hopefully they only affect you once in a blue moon.
A blue moon is quite rare, so we use it to talk about things that almost never happen.
If I oversleep, I'll be late.
Luckily, that only happens once in a blue moon.
So, we've seen three phrases with blue.