Yeah, it's a classic example of a hosta with Hosta Virus X. Here is a link to the Hosta Library and it has some pretty good information on HVX.
http://www.hostalibrary.org/fi...
Remember to always sanitize your tools and hands between plants, be they hosta or other plants, so you don't transmit diseases all over your gardens.
I'd dig and get rid of that diseased hosta and put a companion plant in its place. Do not plant another hosta there, ok? Good luck and Welcome to the Addiction. :)
Diann
