Probably something like

“Ski-bi-dibby-dib yo-da-dub-dub, yo-da-dub-dub Ski-bi-dibby-dib yo-da-dub-dub, yo-da-dub-dub”

Or maybe

“Ba-da-ba-da-ba-be bop-bop-bodda-bope Bop-ba-bodda-bope Be-bop-ba-bodda-bope, bop-ba-bodda Ba-da-ba-da-ba-be bop-ba-bodda-bope Bop-ba-bodda-bope Be-bop-ba-bodda-bope, bop-ba-bodda-bope”