the act of being a human parasite, it cannot support itself alone and must leech off a host. destroys anything it touches.
"ey max, this yakov broke your piece.."
A huge jerk, typically trying to cover up his bald patch by spending way too much time trying to control undergraduates who could function perfectly without him.
"Dude who is that who keeps trying to mess with our business and make our lives miserable?, He is SUCH a Yakov"