1. [late 19C] (US short order) a meat pie.
2. [mid-17C; 1960s] (US gay) in pl., the testicles [play on crown jewels under crown n.1 ].
3. [1970s+] a first-rate person or object [note earlier SE form].
SE in slang uses
[mid-19C–1910s] breaking rocks as part of one’s prison sentence; thus diamond-cracker, one who is working off such a sentence.
[1970s+] the erect penis.
[mid-19C] (UK Und.) rich, powerful individuals.
[mid-19C] (UK Und.) to place a stone in one’s shoe to counterfeit lameness.