Great way to determine the return route of a drunkard

In the middle of the night, when Tom was walking home after the company party, he happened to see a drunk girl crashing into her.

The beautiful girl staggered apologetically and looked up at Tom to ask:

- Hey, do you see any lumps on my forehead?

Tom frowned and said:

- 3 parts, where did you touch it?

The girl didn't seem to notice Tom's question, while walking and muttering:

- 3 pieces, 4 electric poles are coming home!