Definition of knickerbockered in English:

knickerbockered

adjective

See knickerbocker

‘In the very early 1980s, the bar was the rather unlikely official meeting place for the city's wannabe Blitz kids - the original New Romantics, in all their knickerbockered glory.’
‘He's gone all-out on his art-deco theming, and not a detail seems to have been missed, from the knickerbockered porters to the 1920s music to the characteristic typeface on the room-number plaques.’