Pond scum
01
池の浮き草, 屑
someone who is considered to be of very low social status or morally reprehensible
例
After the scandal, he was called pond scum by the public for betraying their trust.
スキャンダルの後、彼は彼らの信頼を裏切ったとして、公衆から池の浮き草と呼ばれました。
池の浮き草, 屑