- 1[intransitive] flop (down/back) (into/on something) to sit or lie down in a heavy and sudden way because you are very tired Exhausted, he flopped down into a chair.
- 2[intransitive] + adv./prep. to fall, move, or hang in a heavy or awkward way, without control Her hair flopped over her eyes. The fish were flopping around in the bottom of the boat.
- 3 [intransitive] (informal) to be a complete failure The play flopped on Broadway. The Yankees flopped in the World Series.
NAmE//flɑp//Verb Forms present simple I / you / we / they flop
he / she / it flops
past simple flopped
-ing form flopping