Sentence examples for losing the plot from inspiring English sources

"losing the plot" is a correct and usable phrase in written English.
It is a figurative expression that means to become confused or lose the thread of a conversation or situation. One can use this phrase in informal writing or in dialogue to convey a sense of frustration or confusion. For example: - "I couldn't follow his argument at all - he was completely losing the plot." - "The meeting was a disaster. Our boss kept interrupting and changing the topic, I think he was really losing the plot." - "After hours of studying, I feel like I'm starting to lose the plot. Maybe it's time for a break."