I named mine 'echoreply', which I thought was pretty neat. There's always stack smashing, but that's kind of a knock off. You've got SIGBUS, but that's not a very informative name to search engines that do not write code. Variants of SEGV might seem cool, but with so many reported segfaults on public lists you'd just get lost in the shuffle.
Of course, there's i-refuse-to-write-reentrant-code-because-threads-are-evil.com , but that's sort of long (but controversial). However, such a name will surely make your blog popular and you get to bitch about mutex debugging. Without checking, I'm quite sure that most preprocessor tokens are taken as domain names. Venturing to other operating systems, "Abort, Retry, Fail" was a popular column way back when, you don't want those sloppy seconds.
Your posts will likely be full of linguistic errors, so syntax error is sort of redundant.
So, I recommend segbus.com which appears to be open, short, related and should catch searches starting with SEG. Or, bareback-with-no-stack-protector-needed , but thats icky and long.