Green’s Dictionary of Slang

1. a term of abuse.

1922		Joyce Ulysses 246: God’s curse on you [...] you bitch’s bastard!
1935		N. Algren Somebody in Boots 322: A scut it is I am, ye bitch’s bastard?
1952		M.F. Caulfield Black City 44: ‘Flynn, you bitch’s bastard, look what you’ve done?’ ‘Up your jersey,’ said Flynn.
1954		J. Phelan Tramp at Anchor 179: There were very few Bitch’s Bastards at Parkhurst, but they made life a misery for everyone, convicts and warders alike. [...] The elderly B.B.’s were very naive [...] gossiping in their gutter jargon with strangers.
1991		I. Banks Consider Phlebas 128: Kraiklyn, you stupid motherfucking son of a bitch’s bastard!
2010		D. Holmstrom Life Is a Highway 86: [of an automobile] This bitch’s bastard’s whore went like a goddamn raped ape with me at the wheel.

2. (UK prison) a severe, poss. violent, warder.

1954

J. Phelan Tramp at Anchor 179: There were very few Bitch’s Bastards at Parkhurst, but they made life a misery for everyone, convicts and warders alike. [...] The elderly B.B.’s were very naive [...] gossiping in their gutter jargon with strangers.