trol ‧ ley /ˈtrɒli $ ˈtrɑːli/ BrE AmE noun [countable]
[ Date: 1800-1900 ; Origin: Probably from troll 'cart' (17-19 centuries) , from troll 'to roll' (15-19 centuries) ]
1 . British English a large basket on wheels that you use for carrying bags, shopping etc SYN cart American English :
a supermarket trolley
2 . British English a small table on wheels used for serving food SYN cart American English :
a drinks trolley
the sweet trolley (=one for serving sweet dishes, cakes etc in a restaurant)
3 . American English an electric vehicle for carrying passengers which moves along the street on metal tracks SYN tram British English
4 . a ↑ trolleybus
5 . be off your trolley British English informal humorous to be crazy