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  • verb Present participle of flack.


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  • "...within the minute there was an all-pervading roar of sails flacking and slatting as they spilt the wind—a horrible sound."

    --Patrick O'Brian, The Letter of Marque, 81


    1. intr. To flap, flutter; to flap the wings; to throb, palpitate.

    2. To hang loosely. dial.

    3. trans. To move or shake intermittently; to flap, flick; also, to flap or flick with (something). (Connoting a clumsier instrument and a ‘flatter’ blow than flick.)

    4. Agric. To beat with a flail; also to rake (hay).

    Hence flacking vbl. n., the action of the vb.

    February 29, 2008