lose the plot
Definition of lose the plot
: to become confused or crazy She was so nervous she thought she was going to lose the plot.
Word by Word Definitions
: to miss from one's possession or from a customary or supposed place
: to suffer deprivation of : part with especially in an unforeseen or accidental manner
Seen and Heard
What made you want to look up lose the plot? Please tell us where you read or heard it (including the quote, if possible).