It's a great word, as it so accurately describes that feeling of rage that we got from douchecanoes, bad drivers and body police. It sounds kinda fun, lighthearted, with the -y ending.
But if we (progressives/feminists/equalists etc) are a community that is against violence, a community that is aware that violence and threats of violence are used against us, especially against women, I think it's a little lazy and crass for us to use such a violent term. Especially when usually we are just really fucking angry.
I know some of my very favourite bloggers use it, and those of you who do, I would love to hear from you. Am I completely off track? Is it something we should do, but meh, more important things?
Language, and the way we use it, is important. And something we should be aware of how we use.