- 1[intransitive, transitive] flail (something) (around) to move around without control; to move your arms and legs around without control The boys flailed around on the floor. He was running along, his arms flailing wildly.
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- 2[transitive] flail somebody/something to hit someone or something very hard, especially with a stick
flail
verbNAmE//fleɪl//
Verb Forms present simple I / you / we / they flail he / she / it flails
past simple flailed
-ing form flailing
Check pronunciation: flail