Sticking out one's middle finger and showing someone the back of your hand. An obscene gesture originating in Western culture, roughly meaning "fuck you!" 

It is somewhat less obscene in Japan, but still expresses defiance.

h4. See also

* [[double middle finger]]
* [[Tag Group:Gestures]]

h4. External links

* "Wikipedia: Finger (gesture)":https://en.wikipedia.org/wiki/Finger_%28gesture%29
中指 竖中指 ファックサイン 凸