To violently toss the limbs about.
To beat soundly, usually with some tool such as a stick or whip; to drub.
To separate the grain from the straw or husks (chaff) by mechanical beating, with a flail or machinery.
To twist one's body to and fro with short, writhing motions; to squirm.
To cause something to wriggle.
To use crooked or devious means.
A wriggling movement.