Churr

Webster's Dictionary of the English Language

·add. ·vt To utter by churring.

II. Churr ·add. ·vi To make a churr, as a cockchafer.

III. Churr ·add. ·noun 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.