Definition of: flop

(flop) v. flopped, flop·ping v.i.
1. To move or beat about with or as with thuds.
2. To fall loosely and heavily: to flop to the ground.
3. Colloq. To fail.
—v.t.
4. To cause to strike, slap, or drop with or as with a thud.
—noun
1. The sound or act of flopping.
2. Colloq. An utter failure, or a person who has failed. [Var. of FLAP]
—flop′per noun
—flop′py adjective
—flop′pi·ly adverb
—flop′pi·ness noun