Green’s Dictionary of Slang

1. (Irish) the male genitals.

1977

(con. 1940s) S. McAughtry Sinking of the Kenbane Head 101: A soldier [...] had me in a bear-hug and would have killed me if I hadn’t taken a grip of his particulars.

2. (US prison) any member of the authorities who has an immediate effect on a prisoner’s life: a warder, the sentencing judge, the parole board etc.

1983

R. Klein Jailhouse Jargon and Street Sl. [unpub. ms.].