Imo, it's being agressive passively... looking to get a reaction without being actively confrontational or openly provoking.
Like telling their roommate to clean and then slowly picking up stuff sighing loudly.
Or saying that someone looks tired in a tone of fake symphathy - in effect telling that this someone looks not at all great.
Telling someone embarassing childhood stories with a benighn look because they are pissed about something the other person had done.

So sabotaging your work would be an actively harmfull thing and not a passive agressive thing. But maybe definitions vary. *shrugs*