To run the hoop; an ancient marine custom. Four or more boys having their left hands tied fast to an iron hoop, and each of them a rope, called a nettle, in their right, being naked to the waist, wait the signal to begin: this being made by a stroke with a cat of nine tails, given by the boatswain to one of the boys, he strikes the boy before him, and every one does the same: at first the blows are but gently administered; but each irritated by the strokes from the boy behind him, at length lays it on in earnest. This was anciently practised when a ship was wind-bound.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Hookers * To HoopNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes