
Off your trolley
Informality
The phrase is informal and often used in casual conversations or humorous contexts.

When Steve wore socks with sandals, his sister said he was off his trolley.
British Origin
It’s a British phrase, so it's more common in the UK than other English-speaking countries.

After hearing his bizarre plan, his friends chuckled and remarked, 'You're off your trolley, mate!'
Emotional Exaggeration
Often used to exaggerate for effect, not literally calling someone insane.

She bought all the concert tickets - she’s completely off her trolley!
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