McDonald's is bringing back its iconic Shamrock Shake — with the help of a beloved mascot's relative! McDonald's said Shamrock Shakes will return to participating restaurants on Monday, Feb. 10, the ...

Uncle O'Grimacey debuted in 1975, five years after the Shamrock Shake first hit the McDonald's menu. Shaped like Grimace, with a round body and short arms and legs, Uncle O'Grimacey is all green ...

Uncle O’Grimacey, Grimace’s Irish uncle, might not be as popular as his purple nephew, but he plays an important role in McDonald’s Shamrock Shake history. The St. Patrick’s Day character ...

McDonalds The Shamrock Shake’s return calls for a McDonald’s family reunion. The once-viral Grimace invited Uncle O’Grimacey over from Ireland to celebrate the minty treat’s comeback ...

McDonald's is bringing Uncle O'Grimacey back to promote the Shamrock Shake. The chain has been reviving its McDonaldland characters after the success of its Grimace Birthday Meal. McDonald's sales ...