"Hop-tu-Naa is a Celtic festival celebrated in the Isle of Man on October 31st. It is the celebration of the original New Year's Eve (Oie Houney). It is thought to be the oldest unbroken tradition in the Isle of Man...

The term 'Hop-tu-naa' comes from a Manx Gaelic song traditionally sung during the festival which included the nonsense Hop-tu-naa as part of the rhyme scheme, such nonsense rhymes are common theme in Irish and Scottish Gaelic music....

On the Isle of Man today, many groups of people continue the tradition of singing Hop-tu-Naa songs 'around the houses' with turnip lanterns. In addition to this, many Hop-tu-Naa events take place across the Isle of Man each year, most of which today include competitions for turnip [lanterns] and the singing of traditional songs...

...children dress up and go from house to house hoping to be given sweets or money, as elsewhere. The children carry carved 'turnip' lanterns (which are known as 'moots' by the Manx) and sing Hop-tu-Naa songs." -Wikipedia

Hop-tu-Naa - Manx Children's Songs - Isle of Man - Mama Lisa's World: Children's Songs and Rhymes from Around the World - Intro Image

Notes

*Halloween aka old Sauin night.

This is a shortened version of the Hop-tu-naa song as found in the 1st two videos below. It seems people sing shorter versions, at least on YouTube they do. You can find longer versions of Hop-tu-naa here. The song is also often combined with Jinny the Witch.

Comments

"Traditional food for Hop-tu-Naa includes 'mrastyr': potatoes, parsnips and fish mashed up with butter. Any leftovers from this evening meal would be left out with crocks of fresh water for the fairies. Toffee would also be made, with just sugar and water, as a communal activity on the evening of Hop-tu-Naa." -Wikipedia

Watch
In the video below they sing the Hop-tu-naa song as it's given above.

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The version in the video below starts with the "Ginny the
Witch" song (lyrics below) and then they sing the Hop-tu-naa song at the top of the page…

"Hop tu naa, me mothers gone away
And she won't be back until the morning.
Jinny the witch flew over the house
To fetch the stick to lather the mouse…"
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The version in the video below starts and ends with "Jinny the witch flew over the house to fetch a stick to lather the mouse" and then repeats these lines…

Shoh shenn oie Houney, hop-tu-naa,
T'an eayst soilshean, trol-la-laa!

English Translation:

This is Hollantide night, hop-tu-naa!
The moon shines bright, trol-la-laa!

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Thanks and Acknowledgements

Translation based on the translation in the 1st video below.
Image: By Culture Vannin, cc.