Crossword clues for the word: EIEI The word EIEI has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for EIEI Showing 1 to 6 of 6 results Clue(s) "___-O (""Old MacDonald"" refrain)" """... had a farm ___ - O""" "Letters before O, in a refrain" "Part of ""Old MacDonald"" refrain" "With O, a refrain" Letters before O?