Lurkerbating 

To masturbate to something someone else is doing inconspicuously.

"I caught Dylan lurkerbating outside my window while I was looking up porn!"
Cody-You should close your blinds when you do that.

Lurkerbating by The Guy With The Pants January 25, 2011

likerbating 

The act of liking one's own comment or post on Facebook.

Likerbating, formally know as likerbation. *This is not the same as like-baiting*

"I hate it when Kruger keeps likerbating all of his own posts."

likerbating by BoneyMonkey September 3, 2014

lurkabating 

Masterbating while lurking around FB

"Matt was too busy to respond to my IM because he was too busy lurkabating."

lurkabating by Kendi February 13, 2014