McDonald's annual St. Patrick's Day Shamrock Shakes Shamrock Shake Shamrock'd their McShakes since 1970 Uncle O'Grimacey Uncle O'Grimacey McDonald's shamrock shakes 5 long years shamrock shake English Shamrock Shake. Shamrock Shake Shamrock Shake the ingredient list isn’t exactly stellar ''Uncle...O'Grimacey -shamrock shakes Shamrock Shake St Patrick’s Day milkshakes shamrock shakes Shamrock Shake Shamrock Shake ''Uncle O'Grimacey First introduced in 1970 Shamrock Shakes Shamrock Shake McDonald's annual St. Patrick's Day Shamrock Shake Shamrock Shake Shamrock Shake Shamrock Shake Shamrock'd their McShakes Shamrock Shake Shamrock Shake Shamrock'd their McShakes Shamrock Shake Shamrock Shake Shamrock Shake McDonald's Shamrock Shake Shamrock Shake Shamrock Shake Shamrock Shakes Shamrock Shake Shamrock Shakes St Patrick’s Day milkshakes Shamrock Shake Shamrock Shake Shamrock Shake Shamrock Shakes ''Uncle O'Grimacey Shamrock Shake Shamrock Shakes Shamrock Shake shamrock shake Shamrock Shake Shamrock Shakes Shamrock Shake ''Uncle O'Grimacey Shamrock Shakes Shamrock Shake Shamrock Shakes Shamrock'd their McShakes they do Shamrock Shake Shamrock Shake Shamrock Shake Shamrock Shake Uncle O'Grimacey McDonald's annual St. Patrick's Day Shamrock Shake http://en.wikipedia.org/wiki/Shamrock_Shake Shamrock Shake Shamrock'd their McShakes Shamrock Shake Shamrock Shakes Shamrock'd their McShakes Shamrock Shake Shamrock Shakes English Shamrock Shake Shamrock Shakes Shamrock'd their McShakes Shamrock Shake -shamrock shakes since 1970 Shamrock Shakes