1. bye-bye - Noun
2. bye-bye - Interjection
a farewell remark
Source: WordNetBye Bye
You can take wonderfully talented actors, wonderfully talented writers and producers, and, uh, do a wonderful show!... but if it doesn't hit with the public in two minutes, it's bye-bye. Charlotte Rae
I passed on the cocaine, Said bye-bye to my methadone. Put down the bottle for one more day. Backing off of my Tobacco Jones. Still I feel like a hopeless junkie, Like a man who can't say no. I look back and there's that monkey; Rascal won't let go. James Taylor
I played bass guitar in high school and in college and then I actually fractured my thumb, so my bass career went bye-bye. Colin Hanks
It definitely is not. Bye-bye Tucker Carlson! #BlackLivesMatter. Tucker Carlson
they said their good-byes Source: Internet
Bye-bye 2019: Welcome to a new decade! Source: Internet