Geez, that guy makes a nice banjo/uke and plays it real good,
too. The clawhammer banjo style (with no 5th string, but it sounds
like there's one) is astonishing. My very first stringed instrument
was an old banjo uke (that I still have) around age 6--- my dad
fixed it up for me. But that thing--- and the player--- wow.

Anyway; at Mystic Seaport, they've used 'Johnny Booker' for a bunting
shanty, but the melody they use is closer to 'Little Sally Rackett'
(or the childish "Nya nya nya nya nya nya" taunt) than what was
presented at YouTube.

"Do me Johnny Booker, roll me in the clover
Do me Johnny Booker DO!"

"Do me Johnny Booker, roll me down from Liverpool
Do me Johnny Booker DO!"

(On a bunting shanty, the work happens on the last note, well
not really, the 'gathering' happens throughout, but the bunt
is "tossed" or rolled up onto the top of the yard on the last
note.)

I never made the connection between 'Booker' and 'Bugger' but
let's face it, the voyages were long--- also, bunting shanties
are the least 'polite' of all because the officers (or the
cook) were least likely to hear what was being sung or by whom.

In the case of the officers, it was a matter of a "hazing." In the
case of a cook, well, he might "whip it out" and then the hash
might be a bit more salty than usual---