Meaning of the word "toodle oo" in English

What does "toodle oo" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

toodle oo

US /ˌtuː.dəlˈuː/
UK /ˌtuː.dəlˈuː/

Exclamation

goodbye (often used humorously or informally)

Example:
Well, I must be going now. Toodle-oo!
She waved and said, "Toodle-oo, see you tomorrow!"