Hedges. The cull thought to have loped by breaking through the crackmans, but we fetched him back by a nope on the costard, which stopped his jaw; the man thought to have escaped by breaking through the hedge, but we brought him back by a great blow on the head, which laid him speechless.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
See also the definition in Nathan Bailey's 1736 dictionary of canting and thieving slang.
Cracking Tools * CracksmanNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes