I always like Brian Kernighan's password "/.,/.," [1].
If you're going for a stupid password anyway might as well make is easy to type. "password" is not particularly nice to type; I wonder why "asdf" is not generally more popular.
asdf and qwerty were up there in the top 10 I think. This was just prior to the days of SQL injection and I'm 100% sure you could have erased our entire production DB with a really "strong" password.