This document contains 10 idioms related to the human body: 1) "Eyes are bigger than one's stomach" means taking more food than you can eat. 2) "Get off my back" means someone is constantly criticizing or telling you what to do. 3) "Look down your nose" means thinking you are better than others. 4) "A sight for sore eyes" means being happy to see someone after a long time. 5) "To cost an arm and a leg" means something is very expensive.