adjective characterised by complete honesty and full disclosure. Sometimes formulated as OPEN THE KIMONO or a variation thereon. Ronin International, a computer consulting firm, promises 'open-kimono' in its published mission statement, explaining that the term 'stems from feudal Japanese times where the term signified that the party will hide nothing within his clothing (the kimono was the dominant clothing of that era) that could conceivably be used as a weapon' US, 1974