Fond; pleased. She’s nuts upon her cull; she’s pleased with her cully. The cove’s nutting the blowen; the man is trying to please the girl.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Nuts * NutcrackersNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes