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British slang
To go crazy; to act irrationally.
Safe to use?
Usually safest with people who already understand the context.
Tone
Casual and context-dependent.
Region
UK
Formality
Informal.
Context Decoder
Check what it means in context, how it sounds and whether it is safe to use.
lose the plot means To go crazy; to act irrationally. It is best read as british slang associated with UK.
"lose the plot" means To go crazy; to act irrationally. In UK, the nuance may be more specific.
Casual and context-dependent.
Usually safest with people who already understand the context.
Context-dependent
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SlangWatch entries are maintained by the SlangWatch Editorial Team using submitted examples, regional labels, tags, and ongoing reader corrections. We avoid claiming a precise origin or cultural pathway unless the entry has meaningful supporting data.