Despite his hiatus, the green, furry icon was never forgotten. Uncle O’Grimacey earned his own merch line, called the Uncle O'Grimacey collection, which includes Shamrock Season pins, a crewneck and, even, a plain white tee that says “Who’s your uncle?” alongside an image of the uncle himself.

McDonald’s is days away from officially launching the return of a seasonal favorite: the Shamrock Shake. The celebratory St. Patrick’s Day drink will arrive on Feb. 10, just over a month before the holiday arrives.

The beloved Shamrock Shake is coming back to McDonald's, along with a McDonald's character no one's seen since the 1980's: Uncle O'Grimacey.

One of the most recognizable holiday treats at McDonald's is making its return, along with one of Grimace's relatives.

A seasonal favorite will be back on the menu next week. Here's what we know about McDonald's Shamrock Shake and Oreo Shamrock McFlurry.

Who needs Groundhog Day—the Shamrock Shake’s return means spring has begun. Starting February 10 and running through March, the famously green vanilla-based mint milkshake topped with whipped cream will be available for purchase,