to fall or plump down suddenly, esp. with noise; drop or turn with a sudden bump or thud (sometimes fol. by down )

The puppy flopped down on the couch.

to change suddenly, as from one side or party to another (often fol. by over ).

to be a complete failure; fail

The play flopped dismally.

Informal . to sleep or be lodged

to flop at a friend's house.

to swing loosely; bounce; flap

His long hair flops in his eyes when he runs.

to drop with a sudden bump or thud

He flopped his books on a chair.

to dispose (oneself) in a heavily negligent manner

to flop oneself in a chair.

to invert (the negative of a photograph) so that the right and left sides are transposed.

an act of flopping.

the sound of flopping; a thud.

a failure

The new comedy was a flop.

Informal . a place to sleep; temporary lodging

The mission offered a flop and a free breakfast.

noun

accomplishment , achievement , success

verb

accomplish , achieve , succeed

noun

bomb , bust , debacle , disaster , dud * , fiasco , lemon * , loser , miscarriage , nonstarter , washout * , washout

verb

dangle , droop , drop , flag , flap , flounder , flutter , hang , jerk , lop , quiver , sag , slump , stagger , teeter , topple , toss , totter , tumble , wave , wiggle , bomb * , close , come apart , come to nothing , fall flat , fall short , flummox , fold , founder , miscarry , misfire , wash out * , plop , plump , plunk , loll , wilt , beat , flitter , waggle , choke , fall through , bed , bomb , bust , collapse , disaster , dud , fail , failure , fall , fizzle , lemon , loser , lounge , rest , washout