I’m afraid I’m going to have to dumb this down a bit by asking if anyone knows the orgin of the phrase “toot sweet”.  I believe I heard it used in reference to meaning perhaps “ right away or immediately” Thoughts?

In French orthography tout de suite.

Compare a similar corruption, san fairy ann for ça ne fait rien.

"Bon-hommy,” went on Eeyore gloomily. “French word meaning bonhommy,” he explained. “I’m not complaining, but There It Is.”

The joke was implied in Chitty Chitty Bang Bang.

Soldiers in WWI pronounced Ypres wipers and Lyon lion (or Lyons - weirdly it is still spelled Lyons by Brits).  Maybe even today, I’ve heard Le Mans said lemans. I remember seeing a cartoon reprinted from a hundred-year-old Punch showing a working-class man calling his kids “May petty ongfongs” ie mes petits enfants though I can’t remember the context. It’s always been a source of cheap humour among monoglots such as the name of the Chinese exchange student Long Duk Dong in the movie Sixteen Candles. Hoo Flung Dung etc.
I doubt if toot sweet is malicious in intent nor Long Duk, a sympathetic character who gets off with a zaftig white girl to Molly’s chagrin.

And cookery--especially Scottish cookery--has petticoat tails (for petits gâteaux) and kickshaws (for quelques choses).

I always thought “Toot Sweet” would be a great name for a brand of air freshener.