Green’s Dictionary of Slang

diarrhoea, esp. contracted on foreign holidays.

2003		Yahoo! News 18 Sept. 🌐 Heard of Delhi Belly? While it’s ‘a stomach disorder sometimes afflicting newcomers to the capital, akin to the Rangoon Runs of Burma and Montezuma’s Revenge of Mexico’, it’s also a cocktail circuit quip. ‘Delhi Belly can be the increase of girth observed on a diplomat after a year of the capital’s social whirl,’ writes Rankin.
2005		www.travelpod.com 28 Oct. 🌐 I wasn’t so fortunate with my short visit, being attacked again by the Rangoon Runs on my only full day in town.
2014		Santa Fe New Mexican (NM) 5 Aug. A-10/4: Euphemisms for the thing — Gandhi’s revenge, Gyppy tummy, the Rangoon runs, Tokyo trots [...] Montezuma’s revengs.