Green’s Dictionary of Slang

Hong Kong dog n.

diarrhoea or any form of stomach problem picked up by visitors to Hong Kong.

Thomas & Bettelheim E. Coli Index 🌐 Travellers’ diarrhoea, a condition which has gone under a variety of regional and descriptive titles, such as gyppy tummy, Aden gut, Delhi belly, Hong Kong dog and Aztec two-step.