Either...
1) An outfit which is out of the ordinary, very
posh and naughty
2) An outfit which is an utter
disgrace to humanity and ones self
dignity
1) public school boys in
pink chinos, naughty boating shoes, club tie, sports jacket,
pipe and
air or superiority. RASCAL CLOBBER
2) bloke wearing boxers, sandals and a woman's crop top whilst walking the dog, unbelievable scenes and utter RASCAL CLOBBER