ghost pot
n.β Β«The commission has purchased side-scanning radars, installed the equipment onto watermenβs boats, trained them on how to use the devices, and turned them loose in search of lost traps, also known as ghost pots.Β» ββVirginiaβs disaster aid would buy crab licenses from watermen” by Scott Harper Virginian-Pilot (Norfolk, Virginia) Dec. 26, 2008. (source: Double-Tongued Dictionary)