In a wood; bewildered, in a maze, in a peck of troubles, puzzled, or at a loss what course to take in any business. To look over the wood; to ascend the pulpit, to preach: I shall look over the wood at St. James’s on Sunday next. To look through the wood; to stand in the pillory. Up to the arms in wood; in the pillory.
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.
Wolf In the Stomach * Wood PeckerNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes