This is the 18090th most frequent Russian word.
хер
The Russian word "хер" is a vulgar term referring to the male genitalia ("penis") and is often used as slang to express frustration, dismissal, or disdain.
Here, the word 'хер' functions as an intensifier to denote disdain for nonsensical talk or actions.
Что за хер ты несёшь?
What nonsense are you talking about?
In this case, the word 'хер' is used in expressions of indifference, usually to emphasize lack of concern.
Да мне совершенно до хера на это.
I absolutely don't care about this.
The word 'херов' here is used colloquially to refer to challenges or problems, illustrating the speaker's perseverance.