Laugh your head off
Definition 1 of 1
Pro Tip 1/3Exaggeration
The phrase is hyperbolic; it does not mean someone's head literally detaches. 
When I watched the movie, I laughed my head off, but of course, I kept my head!
Pro Tip 2/3Informal
Used in casual settings; not appropriate for formal contexts like business meetings. 
At the family reunion, we laughed our heads off at Uncle Joe's stories.
Pro Tip 3/3Emotional Intensity
Indicates strong emotions; use when expressing a deep reaction to something funny. 
His prank was so elaborate, we all laughed our heads off when it was revealed.
Never forget "Laugh your head off"
Humans forget easily. That's why you should download WordUp: Smart reminders, word games, AI practice, and much more!
WordUp Chrome Extension
As you browse the web instantly look up words you don’t know.
Get Chrome Extension