Idioms and Sayings About The Human Body

Idioms and Sayings About The Human Body 

A list as long as your arm.  

For example:- 

When I do a new vocabulary unit my list of things to do is as long as your arm.  

Explanation:  

A very long list

Back to back

For example:-

British cities are full of back to back housing.
 

Explanation: 

To be close together and facing in opposite directions. 

http://www.learnenglish.de/vocabulary/bodyidioms.htm