I'm on a discussion board that has ads in some cases, and I'd noticed a particular ad pop up a few weeks ago, but I hadn't been able to get it to appear again until recently.
It's not a spelling error, so spell-check wouldn't have caught it. And I've tried to twist my head and brain to see if I can force it to make sense somehow (like, you know, how an "ATM machine" could in fact be a machine that spits out ATMs?). But nope - nothing I can do with this except laugh.
I've submitted it to FAIL blog, so we'll see if they end up using it.