Good friends. He and I are not cater cousins, i.e. we are not even cousins in the fourth degree, or four times removed; that is, we have not the least friendly connexion.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Catching Harvest * CaterpillarNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes