The Collaborative International Dictionary
Lobster pot \Lob"ster pot\, n. a device used to trap lobsters, consisting of a semi-cylindrical structure made of wooden slats, with openings formed of funnel-shaped nets allowing lobsters to enter, but impeding their exit. It is also called a lobster trap.
Wiktionary
n. A trap used to catch lobsters, resembling a crate with a small opening that a lobster can enter but has trouble exiting.
WordNet
n. trap for catching lobsters
Usage examples of "lobster pot".
He cruised up to a buoy, grabbed it with a boat hook and hauled it aboard, fed its rope through a block and tackle suspended from a steel A-frame, wrapped the rope around a winch and brought the wood-and-wire lobster pot up onto his bulwarks.
Jenkins made some computations from the numbers on the screen, then exploded with the blue-lightning curses he usually reserved for a tangled lobster pot line.
Like a lobster blundering into a lobster pot, entry was easy for him, but escape would be impossible.
By Miami standards, it was a typical collection of strangers: a tattooed lobster pot poacher, a nipple ring designer with a shaved head, a santero who chanted prayers to Babalu Aye during recess, a cross-dressing doorman from a South Beach club, and two Kendall housewives who nervously clutched their purses.