Foursquare Names World's Rudest Cities Or at least those whose users swear a lot By Nick McMaster, Newser Staff Posted Mar 2, 2011 3:48 PM CST 7 comments Comments A sign outside the City of Manchester Stadium, home of Manchester City FC on February 27, 2011 in Manchester, England. (Getty Images) (Newser) – Foursquare has been crunching numbers in its database and come up with the 20 rudest cities in the world, the Huffington Post reports. Or more precisely, the cities whose check-in tips contain the most curse words. The honor for English-speaking countries goes to Manchester, England. But don't let that make you think that Americans aren't rude. El Paso, Texas, is right up there, and US cities fill out the rest of the top 10. The first five: Manchester, UK El Paso, TX Pittsburgh Bloomington, IN Riverside, CA Click for the full list.