I think fist-fingers-out has a 'resist' meaning but a fist-fingers-in can be used as a 'polite' middle finger. I've never seen someone in the USA use it that wa

I think fist-fingers-out has a 'resist' meaning but a fist-fingers-in can be used as a 'polite' middle finger. I've never seen someone in the USA use it that way, but I have in Australia.