a person of male gender who is a master at fucking up the women he comes in contact with.
Originally it was "master fuck", but its conceptual creator (whose name won't be mentioned due to website policy) shortened it to Master Fu.
The fact that the name itself has a strong nuance to ancient Buddhist tradition was applied wisely to evoke a false spiritual connotation to the identity, and in such manner further deceive its gullable targets.
Other known variations: cock, cock on a rock
She tried to kill herself after Master Fu left her.