dick ‧ y ‧ bird /ˈdɪkibɜːd $ -bɜːrd/ BrE AmE noun [countable] British English informal
1 . a small bird – used by or when speaking to children
2 . not hear a dickybird to not hear any news about someone or something:
‘Have you heard from them since they moved?’ ‘No, not a dickybird.’