It used to take me all vacation to grow a new hide in place of the one they flog off me during school term.

为了长出一层新皮来代替在学期中被鞭打掉的一层，我常常要？上整个假期。

youdao

We buy them cheaply and then flog them off at a profit.

我们低价买下这些，然后卖出获利。

《牛津词典》