In talking with people who don't own any cryptocoins, I've sometimes been using the term "Bitcoin" to mean all cryptocoins in general, and the community surrounding them. i.e., if I traded Litecoin for Terracoin today, and gained, I might say "I made some bitcoin today."
A better term is probably 'coin or cryptocoin, but I'm liking the idea of genericizing the term. I'm sure it would royally piss some people off.
Personally I like the term cryptocoin, or just 'coin if you're in knowledgable company.
I did read Mathcoin (math based coin) in a news article, which is interesting because it's short and laypeople may not know what crypto is.
