A "herb" (stupid annoying person) in facebook form.
A pathetic attention whore looking to give constant useless updates during their everyday life (or lack of life) on the website known as facebook.
A facebook herb is also known as a person who responds, comments, and has any concern for these updates as well.
Examples of "Facebook Herb" Status Updates:
"I had work today"
"Not feeling well, show me some love"
"I'm a loser please give me attention in any form"
"Omg such drama last night at the party rofl lolz"
"Jim is coming over...I'm so excited!!!! : )"
"New pics!!! Comment and raise my self esteem!!"