To move like a flail.
To beat using a flail or similar implement.
To wave or swing vigorously
To thresh.
A weapon which has the (usually spherical) striking part attached to the handle with a flexible joint such as a chain.
A tool used for threshing, consisting of a long handle with a shorter stick attached with a short piece of chain, thong or similar material.
To flog or beat with a knout.
A leather scourge (multi-tail whip), in the severe version known as 'great knout' with metal weights on each tongue, notoriously used in imperial Russia.