The act of systematically "liking" everything on a person's Facebook wall so that they have dozens of updates that are in reality only your "likes".
Harold: What's wrong, bro?
Dennis: I logged onto Facebook and I saw like 45 updates and I thought that a bunch of people had commented on my new album from my trip, but when I clicked on it, it was just Vince likebombing my wall.
Harold: Oh, what a douche.
Dennis: Dude, he even liked where my status said that my mom died.