Lurker

[Britney]

A lurker is someone that follows the forum but doesn’t post.

[Little_Girl]

someone who seems to always be present bu unnoticed

[Sonia]

A person who is just there. Nobody really knows why, other than they show up and dont say a word. Possible reasons for this could be:
-They dont know what to say
-They are pretending to have friends
-They are trying to scare you
-They are there just to be seen with you, as if they have some kind of relationship with you.

[Mark Zuckerberg]

one who reads a [blog] without ever commenting on the posts

[Couch Potatoe]

A guy who hangs around your girlfriend as a friend who is really just waiting for the day when you and your significant other are on the rocks. That is when he swoops in to make a move, as the comforter, supporter, and basher of her current bf. Women are oblivious to them entirely.

[Sonia]

One who creeps relentlessly, usually used to refer to males who will contact a female more than 3 times a day through Facebook, Myspace, Text, Calling, and Instant messaging. The female must not be interested.
Powerful Zerg unit, upgraded from Hydralisks costing 100 Vespene Gas and 50 Minerals. Effective on ground units only, utilized best with stacking at entrance way to base. Low hp/armor but when burrowed, will not appear on opponents screen unless observer/Overlord is present.

[Kai]

When you follow the conversation of two people who are your friends on a social [networking] site such as facebook whilst not actually participating in the conversation. A digital version of [eavesdropping].
[NB]: Anything you say to people on facebook through the comment system really isnt private.

[Becky]

When you let a [fart] go, and it seems to [follow] you wherever [you go].

[Sarah]

someone who reads the messages in a chat room without taking part