look like death

Also, look or feel like death warmed over. Look or feel very ill or exhausted. For example, After two nights without sleep, Bill looked like death warmed over, or This cold makes me feel like death. [Colloquial; 1930s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.