Come on! Punch me! I'm shaking in my shoes!

punch sb.: hit sb hard with fist. 用拳头打某人
shake in sb shoes: tremble with fear 害怕得发抖，害怕

注意：shake in sb shoes. 不仅可以表示反语，也可以表示真的害怕。

When the gunman began robbing the bank,David was hiding under the desk and was really shaking in his shoes.

【学习英语不在于一次学多少，而是每天都学一点】