werekoala 

Someone who is very tired and goes on a thread and writes bizarre things that have little or nothing to do with what is being talked about on the thread.

Usually has lots of elipses and repeated letters.

jimmy: you kno that game last night was intense
sam: yeah seriously it was
andrea: i love to eat chickennnn its sooo good...
jimmy: andrea, you stay up too late?
sam: looks like weve got a werekoala on our hands...
andrea: baahhhhh whatttt ahhhhahahaha...

werekoala by c-dence January 2, 2008