Daily Expression
Ａ:	山口さんが来月結婚するんだってね。
Ｂ:	うん、聞いた聞いた。相手は箱入り娘だっていうじゃない。一体どこで知り合ったんだろう。
Romaji:
Ａ:	Yamaguchi san ga raigetsu kekkon surundatte ne.
Ｂ:	Un, kiita kiita.　Aite wa hakoiri musume datte iujanai.　Ittai doko de shiriattandaroo.
Translation:
Ａ:	I heard that Mr. Yamaguchi will get married next month.
Ｂ:	Yeah, I heard it too.　And I also heard that the bride is her parents' apron-string daughter.　I’m just wondering where they met each other.

箱入り娘　／　Hakoiri Musume:
A daughter, who is raised very carefully, even hardly let go out as if she was a treasure that is kept in a box, away from getting broken or dirty.
Another example
Ａ:	さおりさんってきれいだな。いつかデートに誘いたいな。
Ｂ:	無理無理！彼女は箱入り娘だから両親が許さないよ。
Romaji:
Ａ:	Saori san-tte kireida na.　Itsuka deeto ni sasoitai na.
Ｂ:	Muri muri!　Kanojo wa hakoiri musume dakara ryooshin ga yurusanai yo.
Translation:
Ａ:	Saori is such a beautiful girl, isn’t she?　Someday I’d love to ask her for a date.
Ｂ:	No way!!　She is her parents’pet daughter, and they won’t let you do that!!