hobbyhorse：In the morris-dance, and on the stage (in burlesques, pantomimes, etc.), a figure of a horse, made of wickerwork, or other light material, furnished with a deep housing, and fastened about the waist of one of the performers, who executed various antics in imitation of the movements of a skittish or spirited horse; also, the name of this performer in a morris-dance. ——牛津当代大辞典  @en