old-fashioned slang A piano. Sometimes hyphenated. Every Christmas, Uncle Jerry gets drunk and starts playing some soppy song or another on the tinklebox. She plays a wonderful version of "Moon River" on the tinkle-box.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. a piano. (see also joybox.) The tinklebox in the bar seemed to be a bit loud.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.