Google and misspelled words: The question "did you mean ..." only appears when there are one or two deviations in spelling. Between "rookie zookie" and "rucki zucki" there are simply too many.

The song is what we call in Germany a "Stimmungslied" = approximately "a song of good humour". I first heard it during a carnival campaign, now it is sung or played during drinking bouts and parties. It is no genuine Oktoberfest song, but since people are drinking a lot there ...