T5289750 (to͞od′lz) also too·dle-oo(to͞od′l-o͞o)interj.Informal Used to express farewell.[Alteration of toodle-oo, perhaps imitative of a horn or akin to earlier toddle (off), to depart.]
toodle-oo
(ˌtuːdəˈluː) or
toodle-pip
sentence substituteinformalrareBrit goodbye[C20: perhaps imitative of the horn of a car]
Toodle-oo
Toodle(-oo)
(ˈtudlæ(ˈu))interj. Good-bye. Take it easy. Toodle-oo.