tweedled

Tweedled is the past tense of tweedle, a verb that means to produce a series of high-pitched, warbling sounds, typically associated with birdsong or musical instruments like a flute or fiddle.

The word appears most famously in the phrase Tweedledee and Tweedledum, characters who differ only trivially.

To tweedle can also mean to coax or wheedle someone gently: She tweedled him into helping with the decorations.