When a man rubs the head of his penis with his thumb repeatedly to keep it erect.

Resembles what it looks like when one is playing on a game system like N64 or XBOX.

Also used as a verb

When a girl gives you a blow job while you are playing Xbox. A joystick is a stick on your controller and a nickname for your dick, so a joystick is getting your dick sucked while playing Xbox.

Scientific Name: Penis
1. A stick that brings joy

joystick

noun:

1. the penis when gets erect and moves up and down, and side-to-side, or in a circle, either independently or when someone else grabs it and moves it in said direction themselves, like a video game controller

2. an overactive penis