It's his idea of a joke, I suppose, the scallywag.

我猜他觉得这是个玩笑，这个淘气鬼。

《柯林斯英汉双解大词典》

"The little scallywag, " said the headmaster. "I'll bet it was him all the time."

“这个小无赖，”校长骂道，“我敢说这肯定是他干的。”

youdao

"The little scallywag, " said the headmaster. "I'll bet it was him all the time."

“这个小无赖，”校长骂道，“我敢说这肯定是他干的。”

youdao