Definition of off one's trolley in US English:

off one's trolley

phrase

informal
  • Mad; insane.

    • ‘‘I reckon you're off your trolley,’ she says with surprising insight.’
    • ‘Haven't they noticed that she's off her trolley?’
    • ‘Then of course there are those who are quite literally off their trolley.’
    • ‘She said you'd think she's off her trolley if I told you.’
    • ‘If, ten years ago, anyone had proposed that children in British schools should be taught in any other language than English they too would have been vilified and accused of being ‘off their trolley.’’
    • ‘People think I'm off my trolley but it's exhilarating.’
    • ‘First, to make sure I wasn't totally off my trolley, I sent an email to my fellow rocker, Michele.’
    • ‘I just didn't expect him to be so totally off his trolley as he was that night.’
    • ‘Is it my imagination or have we all gone off our trolley?’
    • ‘He is an ex-supermarket boss who is off his trolley.’
    severely mentally ill, mentally ill, insane, mad, certifiable, deranged, demented, of unsound mind, out of one's mind, not in one's right mind, not together, crazed, maniac, maniacal, lunatic, unbalanced, unhinged, unstable, disturbed, distracted, stark mad, manic, frenzied, raving, distraught, frantic, hysterical, delirious, mad as a hatter, mad as a march hare
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