/ flɒp; NAmE flɑːp/ verb , noun
■ verb ( -pp- ) [ v ]
1.
flop into / on sth | flop (down / back) to sit or lie down in a heavy and sudden way because you are very tired :
Exhausted, he flopped down into a chair.
2.
[+ adv. / prep. ] to fall, move or hang in a heavy or awkward way, without control :
Her hair flopped over her eyes.
The young man flopped back, unconscious.
The fish were flopping around in the bottom of the boat.
3.
( informal ) to be a complete failure :
The play flopped on Broadway.
■ noun
a film / movie, play, party, etc. that is not successful
OPP hit
—see also bellyflop
••
WORD ORIGIN
early 17th cent.: variant of flap .