1. A medieval weapon resembling a mace, consisting of a wooden, steel, or iron pole or stick for a handle, a chain or rope, and a spiked metal ball or cylinder, that was used by knights in battle.
2. An type of Egyptian whip, usually leather, with three or more tails. Flails can be seen held in the hands of pharoahs in paintings, hieroglypics, and on sarcophogi (coffins). Sometimes used in bondage
play. See also cat o' nine tails
Some people enjoy the stinging sensation of being hit with a flail.