Definitions of cackle:

noun: a loud laugh suggestive of a hen's cackle
noun: the sound made by a hen after laying an egg
noun: noisy talk
verb: emit a loud, unpleasant kind of laughing
verb: squawk shrilly and loudly, characteristic of hens
verb: talk or utter in a cackling manner
Example: "The women cackled when they saw the movie star step out of the limousine"