tinkety-tonk

exclamation2

1. •
   (informal, old-fashioned) Goodbye.

   • "On the roof. Right! Well, tinkety-tonk, then, for the moment," said his lordship, and pattered off down the stairs. — 1927
2. •
   The tinkling sound of light piano music.

   • There goes the piano, tinkety-tonk, and there don't go my feet. — 2008