Nettipeukkos

Nettipeukkos is a Finnish slang term that translates literally to "internet thumb" or "net thumb." It refers to the often repetitive or involuntary movement of one's thumb, typically the dominant thumb, when using a smartphone or other touch-screen device extensively. This can manifest as a habit of flicking, swiping, or tapping on the screen, even when the device is not actively in use or when the person is not consciously trying to interact with it.

The term gained popularity in Finland as the use of smartphones became ubiquitous. It describes a physical manifestation of the constant engagement with digital interfaces. People might experience nettipeukkos as a phantom sensation, a twitch, or a habitual, almost unconscious, motion. It is often associated with prolonged periods of browsing social media, playing mobile games, or engaging in other activities that require frequent thumb interaction.

While not a medical condition, nettipeukkos is recognized as a common behavioral phenomenon tied to modern technology use. It highlights the ergonomic and psychological impact of our increasingly digital lives. The term is usually used in a lighthearted, informal context to describe this common modern habit.