Have you heard about brain fart?

不知你是否听过「大脑放屁」这个词?

I just get nervous and my brain farts!

我只是变得紧张， 我的大脑放屁！

But I would commonly end up, like, at blank moments where I couldn't think of words - essentially a brain fart, but many, many brain fart.

但我通常会在大脑空白的时候想不出什么词来结束——本质上是一个脑放屁，但是很多很多脑放屁。