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”

"Everybody’s saying that the Scatplant stutters

But doesn’t ever stutter when he sings

But what you don’t know, I’m gonna tell you right now

That the stutter and the scat is the same thing, yo

I’m the Scatplant"

Not a plant, but close