flop

1 flop /ˈflɑːp/ verb
flops; flopped; flopping
1 flop
/ˈflɑːp/
verb
flops; flopped; flopping
Britannica Dictionary definition of FLOP
[no object]
1 
: to fall, lie, or sit down in a sudden, awkward, or relaxed way
2 
informal : to fail completely
3 
: to swing or move in a loose, awkward, or uncontrolled way
2 flop /ˈflɑːp/ noun
plural flops
2 flop
/ˈflɑːp/
noun
plural flops
Britannica Dictionary definition of FLOP
[count]
1 
informal : a complete failure
2 
: the sound made when someone or something suddenly falls, lies, or sits down