What's a girl? 
All the time I come back to this thread (just for lulz) I LOL hard with this post (the one after the OP)... hahaha epic
Wow, this thread is SO full of ridiculously sexists remarks, it's unbelievable. Are you guys all 10 years old and still afraid of women or something? It's just shocking to read how low your opinion of women is. They're just as much a human as you, perhaps even more because they don't come here to post such utter crap.
Dude, don't sweat it... some peep is here just to have a laugh. Do you believe the above's quote guy doesn't really know what a girl is?
I really don't give a shit if it's "just to have a laugh". Personally I can't laught about it, and I'm sure women can't either (except for a few). This is the exact behavior that keeps women away from bitcoin forums like this. They don't want to be on a forum filled with men making the same old sexual, disparaging and offensive "jokes" over and over again. You'll have to see this from a women's perspective; for them it's not just the one joke you posted, but hundreds or thousands of 'jokes' year in year out. They get really tired of that shit.
If you really want more women into bitcoin, you need to be open, respectful and friendly to them, not chase them away with childish "jokes".