pond scum是什么意思？pond是指池塘，scum是蛆的意思。pond scum从字面上理解是池塘里面的蛆，引申为社会渣滓，下三滥，贱人，卑劣小人等。
有时候也直接用scum表达含义。这个俚语是非常恶毒的话，心知肚明就好了，一般慎用。

1.You pond scum,get lost!
你这贱人，滚蛋！

2.I wouldn't have anything to do with those pond scum.
我不会和那些无耻之徒来往。

3.These pond scum who fight at the football matches must be severely dealt with!
必须对那些专在足球比赛时打架的社会渣滓严加惩处！

4.All right, I'll return the lead. You call my people ill-mannered. I'll say that yours are pond scum.
好，我得学你的样，你说我家里的人精野，我就说你家里的人下贱。