Green’s Dictionary of Slang

dragging n.

[drag v.1 (1) + sfx -ing]

1. stealing from carts or vans.

[UK]Vaux Memoirs in McLachlan (1964) 82: Lest the reader should be unprovided with a cant dictionary, I shall briefly explain in succession: viz., dragging [...] Robbing carts, or carriages, of bales, trunks, &c.
[UK]Hotten Dict. of Modern Sl. etc.
[UK]Hotten Sl. Dict.
[UK](con. 1800s) Leeds Times 7 May6/6: These youths practised [...] thirteen different ‘lays’ including [...] ‘dragging,’ or cutting trunks off carriages.
[UK]Sl. Dict. 149: Dragging robbing carts, &c. by means of a light trap which follows behind laden vehicles. Cabs are sometimes eased of trunks in this way, though it is hard to say whether with or without the complicity of the cabmen.
[UK] ‘English Und. Sl.’ in Variety 8 Apr. n.p.: Dragging — Stealing parcels from back of van.
[UK]F.D. Sharpe Sharpe of the Flying Squad 330: dragging : Stealing from vans.
[UK]J. Morton Lowspeak.

2. (US Und.) to steal goods deposited in shop doorways; thus dragging n.

[US]Matsell Vocabulum 27: dragging Stealing from shop-doors.

3. (Aus. Und.) to rob on the street, to ‘mug’; thus dragging n.

[UK]W.S. Walker In the Blood 143: I scorn to ‘flimp’ or ‘hold,’ on ‘dragging’ I ain’t bold. [Ibid.] 158: ‘Dew-dropping,’ ‘dragging down’ or ‘flimpings’ more in our line.

4. stealing from parked motor cars.

[UK]R.T. Hopkins Life and Death at the Old Bailey 62: ‘Dragging’ is patrolling in a stolen car to carry out petty larcenies from parked motor cars.
[UK]‘Charles Raven’ Und. Nights 86: The basic art of dragging is to act as if you owned the car and act quickly.

In compounds

dragging lark (n.) (also dragging game)

stealing from automobiles.

[UK]J. Curtis Gilt Kid 18: ‘He ought to know I’m a screwsman and not on the dragging lark.’ It was evident that Curly Simmonds’s pride in being a burglar had been sorely assailed by the accusation that he might be stealing from motor cars.
[UK]J. Curtis You’re in the Racket, Too 193: Nothing in the dragging game nowadays.