Hang on like grim death and hang on for grim death

Hang on like grim death and hang on for grim death are idioms that have been around since the mid-1800s, though the term grim death is a great deal older. We will look at the definition of the terms hang on like grim death and hang on for grim death, where the term comes from […]
from Grammarist
http://grammarist.com/idiom/hang-on-like-grim-death-and-hang-on-for-grim-death/