Green’s Dictionary of Slang

St Giles n.

[late 18C–mid-19C] the criminal slum, in the parish of St Giles, at the junction of Oxford Street and Tottenham Court Road, London, destroyed when New Oxford Street was cut through in 1847; used in combs. below.

In compounds

St Giles buzzman (n.) [buzman under buz n.]

[mid-19C] (UK Und.) a pickpocket who specializes in stealing handkerchiefs.

St Giles’s breed (n.) (also Giles’s breed, St Giles’s, St Giles’s company, St Giles’s order)

[18C–early 19C] criminals as a class.

St Giles’s carpet (n.)

[late 19C] a sprinkling of sand on the street.

St Giles’s Greek (n.) [Greek n. (2)]

[late 18C–mid-19C] slang, cant.