A person who unnecessarily flaunts his
knowledge in
front of others. Or
someone who likes to advise everyone even though nobody asked him to.
Rakesh: Sir, how do we do this problem.
Mukesh (interrupting): Oh, it is so easy, I did it yesterday. It uses
basic trigonometry.
Rakesh(in his
brain): Gyanchod, saala !!! (
Fucking, gyanchod!!)