flail

Universal Words verb, noun verb (written) 1 ~ (sth) (about / around) to move around without control; to move your arms and legs around without control: [V] The boys flailed around on the floor. * He was running along, his arms flailing wildly. [also VN] 2 [VN] to hit sb/sth very hard, especially with a stick noun a tool that has a long handle with a stick swinging from it, used especially in the past to separate grains of wheat from their dry outer covering, by beating the wheat