Whose signature guitar technique is called the "windmill"?

The signature guitar technique called "The Windmill" belongs to Pete Townshend. He is famously known as the guitarist and songwriter of the British rock band The Who. Townshend would often swing his arm in a circular motion, mimicking the motion of a windmill, as he struck the strings of his guitar. This technique not only added a visual element to his performances but also created a distinctive sound and energy to the music.