put/stick two fingers up at somebody

put/stick two ˈfingers up at somebody

(British English, informal) form the shape of a V with the two fingers nearest your thumb and raise your hand in the air with the back part of it facing somebody, done to be rude to them or to show them that you are angry: He must have been furious — he stuck two fingers up at them and walked out of the room.
See also: finger, put, somebody, stick, two, up