Green’s Dictionary of Slang

stoop n.1

1. the pillory [the position one adopts while thus confined].

[UK]J. Poulter Discoveries (1774) 43: He stalls in the Stoop; he stands in the Pillory.
[UK]Whole Art of Thieving [as cit. 1753].
[UK]H.T. Potter New Dict. Cant (1795).
[UK]G. Andrewes Dict. Sl. and Cant.
[UK]Lex. Balatronicum n.p.: Stoop. The pillory. The cull was served for macing and napp’d the stoop; he was convicted of swindling, and put in the pillory.
[Aus]Vaux Vocab. of the Flash Lang.
[UK]T. Gaspey History of George Godfrey III 24: They had ascended by regular gradations, from the area sneak, — robbing the areas of houses; and the kid rig, — imposing on boys entrusted with parcels, braving every variety of punishment, from the stoop, to the scragging post.

2. (Aus.) a petty thief [he stoops to pick up things].

[Aus]Baker Popular Dict. Aus. Sl.
[Aus]N. Pulliam I Travelled a Lonely Land (1957) 240/1: stoop – a thief.

In compounds

stoop-buzzing (n.) [buzzing n.1 ]

(UK Und.) the robbery of a man she has picked up by a woman (? a prostitute).

[UK]‘Ducange Anglicus’ Vulgar Tongue 35: Stoop Buzzing part. verb. ‘Let us go stoop buzzing.’ A practice with women of robbing gentlemen who fall into their company under peculiar circumstances.
stooping-match (n.)

the placing of a number of people in the pillory at the same time.

[Aus]Vaux Vocab. of the Flash Lang. in McLachlan (1964) 271: stooping-match the exhibition of one or more persons on the pillory.