Ypur

A Ypur is a large, dark blue, yak-like creature with zig-zaggy antlers. A herd of them was spawned in the spambot attack of 2008, in which the subject line "i love it! send me ypur pics" was posted repeatedly, causing the Boarders to respond with egg whisks, guns, bells, various weapons, and a 5000-pound rhino.

Boarder insanegrrl responded with the following:

Ypur... That sounds like a Mongolian furry animal. Should we make it an official PPC creature? Anyway. Spambot, I release Ypurs on you! They're large yakkish things except they have rather spiky horns and dark blue fur. And they enjoy eating sausages. Sausages made of your body would be the best. *watches Ypurs nom gleefully*

And thus, Ypurs came into being. The Boarders promptly began to fashion barding for them that they might be ridden into battle against the evil spambot and other undesirables.

Links
Images of Ypurs can be found:


 * In this image by Lycaenion,
 * In this other image by Lycaenion,
 * And in this image by Neshomeh.