Dictionary.com
Thesaurus.com

get up on the wrong side of the bed

Cultural  

  1. To act unpleasant because the day got off to a bad start: “You'd better avoid the boss today; she got up on the wrong side of the bed this morning.”

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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