Crossword clues for the word: SHAMROCKSHAKE The word SHAMROCKSHAKE has appeared as an answer to at least 1 crossword clue on different crossword puzzles. Crossword clues for SHAMROCKSHAKE Showing 1 to 1 of 1 results Clue(s) Green frozen treat offered by McDonald's every March in honor of 40-Across (2 wds.)