This is the 18146th most frequent Russian word.
хую
The word "хую" is a declined form (dative case) of the vulgar Russian noun "хуй," which translates to "penis" in a coarse or offensive manner.
Colloquial context expressing indifference.
Я не знаю, как это работает, на хую мне.
I don't know how it works, whatever.
Used in a metaphorical expression to imply arrogance.
Не строй хую из себя важного человека.
Don't act like a big shot.
Used to imply careless or low-quality work.