Flick stick
An alternate mode of using an analog stick on a game controller, for 3D games. Flicking the joystick in a direction faces the character or camera in that direction. For instance, clicking upward will do nothing. Flicking downward will turn the character 180 degrees.
Invented by Jibb Smart.
Should only be used on controllers with a gyroscope such as the Dualshock 4 and Joy-Con so you can combined with gyro aiming.