a general excl. meaning rubbish!, you must be joking! etc; general negation of the preceding speaker’s opinion, demand etc.
|Family Arsenal 117: ’Knickers!’ she cried, bringing out a tray of burned scones.|
|Spike Island (1981) 429: [She would] bend over with her bottom towards the parade, and lift her skirt to show her big green knickers. You know, ‘Knickers to you lot!’.|