two fingers
noun [ plural ] UK uk/ˌtuː ˈfɪŋ.ɡəz/ us/ˌtuː ˈfɪŋ.ɡɚz/
（手心向里，食指和中指比成V的表示侮辱的）V形手势
in Britain, a sign that is considered rude, made by holding your hand up with your palm facing towards you and your first and second fingers held in a V shape
She drove past and stuck two fingers up at him. 她开车经过时，对着他伸出手指作了个V字表示蔑视。