flop

/flɒp/
noun
[sing.] the movement or noise that something makes when it falls heavily
重坠; 重坠声，扑通声:
He fell with a flop into the water.
他扑通一声掉进水里。

[I] (informal) to be a complete failure 砸锅；完全失败
The play flopped on Broadway.
这出戏在百老汇砸了锅。