Definition of knicks in English:

knicks

plural noun

British
informal
  • short for knickers
    • ‘Of course I wear panties, but on special occasions I wear French knicks.’
    • ‘The programmer, according to one reader, has got his knicks in a bit of a twist.’
    • ‘Cropped top, skirt down on her hips, utility knicks above the waistband, and still she fidgeted constantly to ensure they were fashionably displaying.’

Pronunciation

knicks

/nɪks/