open the kimono

The story

1. Japanese · calque of裃を脱ぐ“to be frank”
2. Japanese · calque of胸襟を開く“to share one's feelings”
3. English todayopen the kimono

Unknown. Possibly a calque of Japanese 胸襟を開く (“to share one's feelings”, literally “to open one's collar”) or Japanese 裃を脱ぐ (“to be frank”, literally “to take off one's haori and hakama (two garments worn over a kimono)”).