Churr /(?)/

1. A vibrant or whirring noise such as that made by some insects, as the cockchafer, or by some birds, as the nightjar, the partridge, etc.

imp. & p. p. Churred; p. pr. & vb. n. Churr"ing

1. To make a churr, as a cockchafer.

   That's the churring of the nightjar.

1. To utter by churring.