|Dict. of the Turf, the Ring, the Chase, etc. 132: The Park is also the rules or privileged circuit round the king’s-bench or fleet . ‘The park is well stocked,’ when many prisoners have obtained the rules.|
|Dict. Archaic and Provincial Words II 605/1: Park [...] Slang term for a prison. York.|
SE in slang uses
see under ape n.
1. the teeth.
|Grose’s Classical Dict. of the Vulgar Tongue.|
|Vocabulum 64: park railing The teeth.|
2. a neck of mutton.
|DSUE (1984) 855/1: from ca. 1880.|