他喝醉后开始炫耀自己的老二。

He got drunk and started bragging about his ___johnson.

酒吧后面有个厕所，方便顾客使用。

There's a ___Johnson at the back of the pub for customers to use.

约翰逊先生是我们学校的校长。

Mr. ___Johnson is the principal of our school.