used most commonly in intercity settings,
to describe hobos masturbating on the buses,
although it can be used to describe them on subways as well.
buses happen to be more common
husband: awe there was another goddamn HJOB on
the bus home from work today
wife: that blows, those fuckers are creepy! did he cum on you?
husband: nah, not this time. but, i'll kill the next HJOB that does!