胡乱吹牛to boast wildly

• 他没事儿就跟街坊邻居瞎吹自己的本事。

  He boasts wildly about his skills to all around him for no reason.

• 不要瞎吹什么最好，只要求对得起良心、对得起老百姓！

  Do not make wild boasts about being the best at something: all one is required to do is be true to one's conscience and to the people!