一姫二太郎

Meaning

1. exp
   it's good to have a girl first and then a boy
2. exp
   one girl and two boys are ideal

Example sentences

• あたし、最初は女の子がいいな！ほら、一姫二太郎っていうじゃない。

  I'd like to have a girl the first time. Look, they say 'First a girl, then a boy' don't they?

• 第二子は男の子だって。これでめでたく一姫二太郎ってわけだね。

  Your second child is a boy? Lucky you! Things are going according to the saying - Have a girl first and a boy next.