(WHIP) Thin, haggard, like the shank of a spoon; also delicate, craving for something, longing for sweets. Avaricious. That tit is damned spooney. She’s a spooney piece of goods. He’s a spooney old fellow.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Split Iron * Spoil PuddingNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes