My happiest recollection of this song - is when meeting (in the bogs of the Heathmount pub in Inverness ) the fabulous Iain McGillray. Whilst we were draining our bladders we struck up this song . I did the harmony and the bog itself was fully tiled so the sound bounced all over the place - and neither of us being sober to any degree , so , you (collectively ) naturally think you're great !!!
I don't know the derivation of the song - but Iain had me convinced it was Scottish - no matter.
"Oh me name is Jock Stuart (Stewart) I'm a canny young man...... " It just bounced off the bog walls and ceiling as we were enjoying a piss together .Happy Days