From 80's. Blackpool player ripped his shorts and replaced them on the pitch. Wolves fan started singing this, whole travelling wolves section took it up and Blackpool fans applauded in appreciation of the lads' Black Country humour!
Suck his c*ck it's Blackpool rock, do-dah, do-dah To the tune of Campdown Races. Thanks Andrew (submitter) for such a great description!