I agree with pemungkah on this one. It's a strident and wildly inaccurate attempt at a joke on feminism, and further implies that the straw feminist
would then go on to continue bitching about something or other, seemingly irrelevant to the discussion at hand.
I'm a female, something of a nerd and yes, a feminist (and even as I write this, I can FEEL the number of eyes rolling at that statement). As such, I will simply say that the "...you patriarchal pig..." comment does a disservice to this entire community, male AND female, by further alienating a group of people that are among your greatest assets and champions.