when the SC2 beta servers were down and the new patch notes were out, both patch notes contained a lot of nerfs to the Protoss mothership. Rilgon and I made a thread just for goofing around woth other people waiting for the servers to come up and someone said somethign about the mothership being useless.

So I said "YO MOMMASHIP!" and since then it has spawned a HUGE thread on the SC2 Beta forums (With blue posts): http://forums.battle.net/thread.html?topicId=23425374601&sid=5000&pageNo=1 And a blog post from Starfeeder, one of the most popular Starcraft blogs: http://starfeeder.gameriot.com/blogs/The-Starfeed/Yo-Mammaship-so-fat

Basically, Rilgon and I made the first SC2 meme and we're just riding the wave.