Definition of trolleys in English:

trolleys

(also trollies)

plural noun

British
informal
  • Underpants or knickers.

    • ‘Knickers, underpants, trolleys or kecks, call them what you will.’
    • ‘At Marks and Spencer's I bought a peach-coloured vest and trollies to match with insertions of lace.’
    • ‘The next thing I know she's got hold of the waist band of my trolleys and she's yanking them upwards.’
    • ‘I mean, how fast will your desire wither when you see that tall, dark, handsome Lothario emerging from a cubicle with an Evening Times under his arm as he fumbles with his trollies?’

Origin

Late 19th century (originally dialect): of uncertain origin.

Pronunciation:

trolleys

//