chain letter scum 

1. A person who you only email when you get one of those "Send this to 200,203 people in 10 minutes or your entire family will suffer fatal heart attacks!" You never email just to chat.
2. One of those "This will happen to you if you don't send this!" people featured in chain letters.

1. Girl 1: Ooh, look! Kevin emailed me!
Girl 2: Don't open it. You're chain letter scum to him.

2. "A girl named Martha Mowdry recieved this chain letter last April and ignored it. The next day, her whole family was killed in a freak plane crash, her house burned down, and she was diagnosed with kidney disease." In this situation, Martha Mowdry is "chain letter scum".

chain letter scum by PLost June 10, 2005

the latualatuka chain letter 

It is a really annoying chain letter that goes a little something like this:
In 1945, a young girl named Katu Lata Kulu came to America from Africa in a grey boat. A mysterious man killed her by cutting the words LATUALATUKA into her back. Now that you have read this message, she will come to your house on a full moon and steal your soul unless you do the following:

Copy and paste this chain letter as a comment for three other videos.

That's an example of the latualatuka chain letter. If you've visited Youtube in the year 2007, you'll find that this is getting way out of hand. Whenever you see it, I suggest you respond with this:
In 2007, a really cool girl named Sasha went to Youtube in search of a video to watch, and instead read that chain letter. Feeling annoyed, she set out in search of Katu Lata Kulu. On the next full moon, Katu Lata Kulu came to her house to steal her soul. But what she didn't know was that Sasha was a professional ghost slayer. So she won't be bothering anyone anymore. Now that you have read this message, Sasha will come and kick your butt if you do the following:

Repost another chain letter in which something bad will happen to you if you don't repost it.

xxSeXyxxGiRl:Oh no!
someonewithascreename:what?
xxSeXyxxGiRlxx:It's the latualatuka chain letter!

the latualatuka chain letter by letusbeus February 6, 2007