An ornate head-dress or loose garment worn by a person in the belief that it renders then invisibly native and not like a tourist at all. People who don huge conial staw collie hats with 'I Luv Lagos' on them in Nigeria, or fat solicitors from Tonbridge on holiday in Malaya who insist on appearing in the hotel lobby wearing a sarong know what we're on about.
source : The Meaning of Liff