open the kimono

“Open the kimono” is a corporate idiom used to describe the act of revealing confidential information, sharing internal data, or being fully transparent with a business partner. It typically arises during high-stakes negotiations, mergers and acquisitions, or due diligence phases when one party grants another access to sensitive inner workings. The term gained traction in Western business culture during the 1970s and 1980s, a period of intense economic interaction between the United States and Japan, though it is generally considered a Western invention rather than a translation of a Japanese phrase.

Perspectives on the term are sharply divided. Proponents or habitual users often view it as standard industry jargon for transparency—simply a way of saying “we have nothing to hide” or “showing our hand.” However, critics and modern language guides increasingly categorize the term as offensive due to its sexist and racist connotations. The metaphor relies on imagery associated with a woman disrobing, often evoking fetishistic stereotypes regarding Japanese women and submission. Because it can create an uncomfortable or hostile atmosphere for women and Asian colleagues, many organizations have flagged it as non-inclusive language to be avoided.

Example:
“During the due diligence phase, the startup agreed to open the kimono and share their proprietary algorithms with the investors.”

Example:
“We aren't willing to fully open the kimono regarding our client list until a non-disclosure agreement is signed.”