I think he is just scatting.
I used to drive my mom nuts back when I was about 5 and wandered around the house singing that as loud as I could. Thanks for bringing those memories back to me, over 60 years later
That’s funny.
Whatever that is, it turns up again in Tiny Toons.
Cab Calloway scat singing…
According to this Looney Tunes Wiki, the bit started with Daffy riffing on Danny Kaye’s debut album.
https://www.dailymotion.com/video/x8jqubr (4:21)
If it’s something specific, it’s likely somewhere on here.
When I read these descriptions, I knew exactly what it was going to be before clicking the link.
Danny Kaye aping Cab Calloway (skip to 2:10 for the relevant bit).
More here (also starts around 2:10).
More scatting…
Ella & Mel
Danny Kaye was apparently one of Mel Blanc’s favorite impersonations.
