flailing is a form of:

Flail



noun
1.
(a wooden instrument for threshing corn by hand) តំបៀតបោកស្រូវ, ដងរែក, រនុកទ្វារ, ឈើបោកស្រូវ
verb
1.
(INTRANSITIVE) Flail about ព្រុសប្រាស
2.
(TRANSITIVE) (to beat with, or as with, a flail) flail grain បោក, flail a student វាយ
ENGLISH MEANING
noun
1.
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.
An ancient military weapon, like the common flail, often having the striking part armed with rows of spikes, or loaded.