Facebook groundhog
A person who uses Facebook to bother all their old friends with fake sympathy or fake insults that feel like a middle school lunchroom argument.
"Oh my god, you’re still single?", said after seeing a post about their new relationship.
"You used to be the best at everything. Now you’re just a sad person.", on a post about their new job.
"You still live with your mom?", said after seeing a post about their new apartment.