goodbye; so long.
Origin of toodle-oo
1905–10; perhaps toodle (variant of dial. tootle to toddle) + -oo interjection
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for toodle-oo
Historical Examples of toodle-oo
However, toodle-oo—sailor, beware, and all that sort of thing!The Orchard Secret
British informal, rare goodbye
Word Origin for toodle-oo
C20: perhaps imitative of the horn of a car
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
colloquial "good-bye" word, 1907, of unknown origin; variant tooraloo is recorded from c.1921.
Online Etymology Dictionary, © 2010 Douglas Harper