cage 
/ˈkeɪʤ/ noun
plural cag·es /ˈkeɪʤ/ noun [count] : a box made of wire or metal bars in which people keep animals or birds
▪ a hamster/monkey/parrot cage — see also birdcage, rib cage
▪ a hamster/monkey/parrot cage — see also birdcage, rib cage
rattle someone's cage
informal : to make someone feel worried or upset
▪ Don't worry about what he said. He was just trying to rattle your cage.
▪ Don't worry about what he said. He was just trying to rattle your cage.
