Verb - To convince friends to come over to your computer while looking up old classmates on Facebook. Then you leave a grenade. After leaving a "grenade" also known as deadly fart, your friends start throwing up everywhere
I was on Facebook after drinking and smoking looking up Angelo Portale while shitting my pants, I left The Facebook Grenade behind, I called my friends over and when they dashed over, (comma) they inhaled through their nose my noxious gas I left lingering in the air.
by John Amsterdam December 27, 2009

When you have been gone for a few days and hear that something big has happened, then start frantically searching, commenting, and chatting on facebook to find out what happened.
by coolgyingman February 10, 2010

by erock75 September 23, 2013

When you say something on your wall or private message that offends someone whether its directly/inderectly you end up silencing the person for a long period of time while their anger, hate and rage builds up to the point of going postal on internet forums.
by FoeSquares January 13, 2010

The act of going onto someones wall on Facebook to post random ideas/topics or things that mean nothing at all.
by Drakenfire May 3, 2010

A mentally ill pathetic idiot who is obsessed with someone else and posts stupid crap on their wall every single fucking day, without giving them air to breathe. Not to mention a like on every picture the stalked posts.
by Raven Whore June 24, 2014

by gars9004 January 22, 2010
