Shamrock Shake
seasonal green mint flavored milkshake dessert sold at select McDonald's during March to celebrate St. Patrick's Day
en-US/ˈʃæmˌɹɑk ˈʃeɪk/
en-GB/ˈʃæmɹɒk ˈʃeɪk/
seasonal green mint flavored milkshake dessert sold at select McDonald's during March to celebrate St. Patrick's Day