spending all of one's time on facebook.
You have seriously been facebooksterbating all day. Please get off the computer and take a shower.
to "like" one's own posts and comments perpetually; to give oneself pleasure by constantly "liking" your own posts and comments on Facebook
Did you see Cole's comments? He's totally facebooksterbating himself on everything he posts.
Nicole's crazy with all her self-liking quotes, an embarrassing display of public facebooksterbating.