go about seeking a job

口语天天练 /Daily Oral English Practice

I fell about when he said he would go about seeking a job. I am clear that he falls into the  category of lazybones and the NEET group. 

他说正准备去找工作时，我简直笑喷。我很清楚他就是个懒骨头，啃老族一枚。

go about doing: 着手做某事；处理某事物；着手干某事

fall about: to laugh without being able to stop

笑得前仰后合；捧腹大笑

We fell about when we heard her reply. 听到她的回答，我们笑得前仰后合。

fall into the category of 属于...范畴/之类