1
general::
Act or speak frankly about something, without hesitation or evasion. For example, Tom made no bones about wanting to be promoted, or Make no bones about it? she's very talented. Versions of this expression date back to the mid-1400s and the precise allusion is no longer known. Some believe it meant a boneless stew or soup that one could eat without hesitation; others relate it to dice, originally made from bones, that were thrown without hesitation or fuss.
American Heritage Idioms