A pole with a hook at the end.
1850. Richard, armed with a picaroon, descended the slip, some thirty feet, to the basin, where the logs lay in the water ready to be drawn in, and by aid of the tooth of the mill-chain dog, to be hauled to the bed of the mill.S. Judd, Richard Edney, p. 42.
1850. The Boy made his picaroon fast to his boat with a rope.Id., p. 220.