When a group (or pair) of visually and vocally reprehensible women (if you can call them that) get together and complain or rather bitch to each other about their meaningless daily lives. They manage to do this at a decible level in which all humans and animals can hear the conversation within a 1 mile radius. This annoying 'cackling' could even wake a Snorlax.
Hen 1: ... oh and let me tell you that i absolutely hated the service there
Hen 2: interrupts
girl stop, I got tell you about this place that ruined my lasagna...
Hen 1 & 2: together
cackle cackle cackle cackle CACKLE!!! then laugh together annoyingly
Dude Trying to Sleep: Aww fuck. Its those dam Cackling Hens
bitching early again and waking my ass up on my day off... kill me now please