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Originally Posted by Adam875  Sorry - some form of transport obviously, but what's a trolley? Anything to to with being "off your trolley" ?! |
I believe a trolley bus is a form of tram or regular bus which has, attached to the roof, some kind of electrical apparatus that trawls along some power lines overhead which had been specifically erected for this purpose
I can't be sure though because I find other exanmples of apparatus to be much more interesting