Sweden is all about equality for men and women. Which is why they have decided to invent a word for female masturbation: klittra.
Throughout history, women’s sexuality has been repressed. It is normal to talk about men masturbating, but female masturbation (or klittra) is taboo. Part of that is not having a word.
In 2013 the Congress of RSFU (Riksförbundet för Sexuell Upplysning or National Association for Sexual Information) voted that a word for female masturbation was needed. In November of 2014 they asked for suggestions and received over 1400 emails and had 200 unique words to choose from. They compiled the list down to 40, and klittra one by 30%. Read the original article here in Swedish.
The RSFU was founded in 1933 and is the main organization for sexual information and sex politics. They have 19 offices all throughout Sweden and you can find their website in English, among other languages.