lurkatory 

Having or characterized by lurking other people on social networking websites such as facebook, myspace or twitter.

"Whenever someone posts to my wall, I click to visit their profile, since I am lurkatory by nature."

lurkatory by keyone April 27, 2009

Lurkatrate 

Means similar to "Lurk" and "Perpetrate" a Lurkatrator is someone who is a serial lurker. They come to a party and lurkatrate on every one, then leave without telling anyone.

"Dude showed up and just lurkatrated for about an hour then took off"

Lurkatrate by GBoots May 25, 2006

Lurkatron 

A person who lurks to the point of absolute social discomfort. Also a person who exhibits severe creeper qualities.

The other night at a party, your friend was hiding in the shadows staring at girls being a complete lurkatron.

Lurkatron by goober916 May 19, 2009