thumbstick means A small joystick, generally part of a larger game controller, that can be operated with the thumb.
thumbstick is pronounced /ˈθʌmˌstɪk/.
Etymology
From thumb + stick.
noun
- A small joystick, generally part of a larger game controller, that can be operated with the thumb.“Occasionally, when playing any given PC port, you’ll experience disorienting frame drops when using a mouse to control a camera that clearly was designed to move only as fluidly as console thumbsticks would allow.”