noun · a person in a state of deep distress or in a sorry, pathetic plight

他在辩论赛中被问得张口结舌，狼狈得像个落汤鸡。

noun · a person who looks soaked to the skin and bedraggled, like a drowned rat

突然下起大雨，他没带伞，被淋成了落汤鸡。