Facebugging
A person who won't stop bugging you on Facebook. They comment on every post like you're their personal vent. They message you every time you log on, and you start to wish you had a facepalm button just to end it all.
@facebugger why are you commenting on my breakfast post again
Hey, I saw you online. Let's chat. Now. Or I'll message you 10 times.
You're my facebugger. I'm ending this. I'm logging off.