* My little finger has told me
Idiom used here and there by Adults
[mɔ̃.pə.ti.dwa.ma.di] • The idiom is a playful way of announcing that you know something when you don’t want to reveal the source of your information. It is the French equivalent of the English idiom 'a little birdie told me'.
"Tu n’as pas fait la vaisselle hier." "Comment tu le sais?" "Mon petit doigt me l’a dit!"
"You didn't do the dishes yesterday." "How do you know?" "My little finger told me!"
Added May 2020 by edefran
18 out of 31 French speakers have heard this