What is no pos ta cabron meaning?

"No pos ta cabron" is a slang phrase commonly used in Mexican Spanish and translates to "well, that's difficult/impressive/cool". It is commonly used to express surprise, admiration or disbelief at something that is difficult to accomplish or achieve. The phrase "cabron" is vulgar slang and can have different connotations depending on its context and tone, but, in this context, it is more commonly interpreted as a colloquial way of expressing awe or excitement.