Noah Webster's Dictionary 1. (n.) An instrument for threshing or beating grain from the ear by hand, consisting of a wooden staff or handle, at the end of which a stouter and shorter pole or club, called a swipe, is so hung as to swing freely. 2. (n.) An ancient military weapon, like the common flail, often having the striking part armed with rows of spikes, or loaded.

Multi-Version Concordance Flail (1 Occurrence) Judges 8:7 And Gideon said, "Well then, when the LORD has given Zebah and Zalmun'na into my hand, I will flail your flesh with the thorns of the wilderness and with briers." (DBY RSV)