go bye-bye
phrase
informal
1
: to go to bed
—used when speaking to children
It's time to go bye-bye, darling: it's way past your bedtime!
2
US
: to go away
—used in imitation of children's speech
When the company went bankrupt, investors watched their money go bye-bye.
Cite this Entry
“Go bye-bye.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/go%20bye-bye. Accessed 12 Mar. 2026.
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Merriam-Webster unabridged
