一风吹

一风吹:

Literally means:

scatter to the winds

Actually means:

It literally means that a gale of wind blows away many things.

It figuratively means that something is completely canceled and declared void. It also figuratively means that a certain practice catches on and is followed by all. In the former case, it is usually used to mean removing things that inflicts harm. In the latter case, it implies that the things that become fashionable are usually what the speaker disapproves of.

阵风吹过来，吹走很多东西。

比喻某件事情全部勾销，不算数。也比喻一种做法流行起来，大家都跟着做，成为一时的风气。前者多用来指去除给人造成伤害等不利的事情。后者所说的成为风气的事情多是说话人不赞成的事。