a person who uses facebook as nothing other than a place to go on a conservative rant about everything. eventually requiring that you hide them from your page.
i had no ideamy brother was such a FACEBAG! he sounds just like Glen Beck.
Similar to a douchebag, a word made from conjoining the famed "your face" insults and the conotations of bag that have been brought on by the word douche bag. A word both insulting in nature and pretty ridiculous. Try it on your friends!
"God! You're such a Facebag, you ate the last slice of pizza!""I'm a what?!"
Someone who uses Social Media without care or etiquette resulting in an appearance of being a douche. Comments meant to be comedic or snarky that come off as really douchey.
One must be prudent when posting on Social Media otherwise the risk of being a Facebag is evident.
That webpage is full of Facebags, I posted a puppy pic and they all told me to kill it.
I commented about the out of focus pictures on that page and the moderator wiped my thread, what a FACEBAG!