Bhak is a slang in Hindi or you can say its a slang in college lingo in India, basically to dislike something, someone, everything or everyone.or may be nothing or no one. Actually bhak gives voice to all the intellectual masturbation, where you keep on doing loads of stuff but end result is nothing. Bhak can also be used for disappriving strongly and forcefully. It is not like 'i dont like this' rather it is like "Sweet jesus on earth i fucking hate this/it/you."
Bhakk sala, i failed again...Bhakk sachin out ho gaya....tum bhak aadmi ho