An interjection used as a rather over-the-top way to say goodbye. It's origins probably lie in the phrase "Toodle Pip."

Toodlepipingtons is typically used jocularly, in imitation of upper-class speakers.
Person 1: Anyway, I've got to go...
Person 2: Ok, see you
Person 1: TOODLEPIPINGTONS!!
by That Posh Guy September 28, 2012
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