trinkle

verb4

1. •
   To play piano, as in "tinkle the ivories."
2. •
   (rare) To tinkle.
3. •
   (Scotland, rare) To trickle.
4. •
   (no longer used) To act secretly, or in an underhand way; to tamper.

   • others of them have made it their business to trinkle with the members of parliament — 1672