a little bird told me
US /ə ˈlɪt.əl bɜrd toʊld mi/
UK /ə ˈlɪt.əl bɜrd toʊld mi/
1.
used to say that you are not going to say who told you something
:
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How did you know it was my birthday? Well, a little bird told me!
•
I heard you're getting a promotion. A little bird told me.