look up any word, like sex:
 
1.
yj
a yell job. It's where one person goes up to a male and scares him by yelling really loud in his crotch area all of a sudden.
Dave: Dude why did you just haul ass over here?
Jim: Joey just gave me the yj of my life and it scared the shit outta me.
Dave: sucks
by YJsFo'Free April 06, 2008