TEN YEARS AGO, Irish social media users were locked in a holy alliance in an annual show of unity against the use of the term St Patty’s Day. The phrase – an Americanised shorthand for St Patrick’s Day – was a spectre that had haunted Ireland since we adopted Facebook and Twitter en masse, allowing us to see how people from across the globe were mangling our colloquialisms. Every March, timelines filled with variations of the message “it’s Paddy’s Day, not Patty’s Day”, a tradition that peaked when cartoonist Maria Doyle (AKA TwistedDoodles) first published a viral guide in 2016...