flop

flop is defined in Webster's Unabridged Dictionary (1913) with 4 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.To turn suddenly, as something broad and flat. [Colloq.] Fielding.
  2. 2.To strike about with something broad abd flat, as a fish with its tail, or a bird with its wings; to rise and fall; as, the brim of a hat flops.
  3. 3.To fall, sink, or throw one's self, heavily, clumsily, and unexpectedly on the ground. [Colloq.] Dickens.
  4. 4.Act of flopping. [Colloq.] W. H. Russell.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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