To "make one's bones" is an American English idiom meaning to take actions to establish achievement, status, or respect.[1] It is an idiomatic equivalent of "establish[ing] one's bona fides".[2]
Although the idiom appears to have originated in the United States criminal underworld,[2][3] it has since migrated to more popular and less sinister usage;[4][5][6][7] such as discussions of various professions and occupations including law enforcement personnel,[8] the legal profession,[9][10] and journalists.[11]
Making your bones refers to establishing yourself as someone who could be counted on, someone who was reliable and trustworthy in all situations; in short, one of the guys.
To gain status, they have had to first 'make their bones,' which, in organized crime parlance, is to establish one's bona fides by killing someone.
After the hit, I acted like a real tough guy about it. I'd made my bones.
My life improved immediately. The other cooks began addressing me as an equal. ... I had made my bones.
I'm not a hard-hearted man, Teddy. I'm not made of stone. ... Floyd Lomax's band – that's how I made my bones in this business.
... John Alonzo ... 'You got me ... I owe it to ya. Made my bones on Chinatown, didn't I?'
Since the 1960s, Hunter S. Thompson made his bones by writing about Fear and Loathing when it comes to politics, motorcycle gangs, guns and Las Vegas.
Yes, I enjoyed the reputation of being fair, one of the highest compliments you can get. I made my bones on the street, too, so I could see all sides.
I have tried about a dozen other murder cases, starting in fact with the one I tried against Jerry Spence in 1985. That is how I have made my bones in the prosecution community, but I still get an enormous amount of flak.
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Sharlet is a smart guy and a talented long-form journalist who made his bones looking into some of the odder corners of the American religious landscape.