bye-bye

[ interjection bahy-bahy; noun adverb bahy-bahy ]

interjection

1. Informal. goodbye.

noun

1. Baby Talk. sleep.

Word History and Origins

Origin of bye-bye¹

1700–10; apparently originally nursery phrase used to lull a child to sleep, later construed as reduplicative form of bye, short for goodbye

Idioms and Phrases

Idioms

1. go bye-bye, Baby Talk.
   1. to leave; depart; go out.
   2. to go to sleep; go to bed.

Example Sentences

But if Trump loses in November, bye-bye, inflated valuation.

From Los Angeles Times

Newton then waved bye-bye to a Villanova student section that taunted him all game.

From Seattle Times

Wave bye-bye as they sink like a rock two miles off the Newport Beach coast with eight consecutive losses and counting.

From Seattle Times

But we can say bye-bye to the byes: Every team is in action for the next four weeks.

From Seattle Times

It was soon bye-bye Braves - once again an October departure in Philly.

From Washington Times