trinkle
verb/ˈtɹɪŋkəl/
2
Rare To tinkle.
3
To play piano, as in "tinkle the ivories."
4
Obsolete To act secretly, or in an underhand way; to tamper.
- others of them have made it their business to trinkle with the members of parliament1672-1673, Andrew Marvell, The Rehearsal Transpos'd: