English idioms

.This post to Wright English idioms , their meanings and give an examples
.The meaning of idioms : idioms are expressions which have a meaning that is not obvious from the individual words

a little bird told me
said when you don't want reveal the source of your information.
"?How did you know the news"
"Oh, a little bird told me."

Bored to death.
.Death is the worst thing, so using it to compare how you feel is telling someone that you are very bored
?would you rather be super busy or bored to death