I have always been puzzled by the meaning of this word/phrase in Peter Bellamy's song 'The Dogger Bank' on 'Fair England's Shore'.

Googling, I found the following variant~~

'The Trip of the Bigler···

CD: "Me for the Inland Lakes" by Tom and Chris Kastle. One of the songs is of the schooner the Bigler.

'And its watch her, catch her, jump up in her juber ju Give her sheet and let her slide, the boys'll push her through
You ought to seen us howlin' as the winds were blowing free On our passage down to Buffalo from Milwaukee"

(From a website on Inland Lakes and Great Lakes shanties.)
,.,.,.
In Peter Bellamy's variant of this, 'Great Grimsby', the passage was 'from the Dogger Bank to Great Grimsby', on one of his first solo albums for Xtra: "Fair England's Shore". In his variant, the chorus was:

So watch yer twinker she's a proper ju bi ju
Give her her sheets and let her rip we're the boys to see her through.
Ye should ha seen us rally the wind a blowing free
A passage from the Dogger Bank to Great Grimsby.
,.,.,.


My query ~~ what is the meaning of 'juberju/juber ju/ju bi ju'?

Google doesn't give much help as to meaning; though there is a YouTube channel of a performer using 'Juberju' as a name, on which 'there has been no recent activity'; and a version of the song appears on a record, 'Mountain Air' by Dan Berggren, under title 'Juberju'.

So, again, what does 'juberju', or 'juber ju', or 'ju bi ju' actually mean, please? Anybody know?

~Michael~