T-8：take someone over one's knee 打某人的屁股

A:The answer is zero! What a let down!

A:白忙了，真让人失望。

B:I really want to take him over my knee.

B;我真想打他的屁股。

A:No hard feeling. After all, he is a child.

A:别生气啦，毕竟他还是个孩子。

B:If you say so!

B:既然你这么说就算了吧。