“该骂的”可以翻译为“deserving of scolding” 或者更口语化的表达“deserves a scolding” ,具体使用哪种可根据语境灵活选择。例如:
He is really deserving of scolding for what he did.(他做的那些事,真该骂。)
That guy who cut in line deserves a scolding.(那个插队的人真该骂。)