Daily Driver
Noun · Hacker Culture
Definitions
The device, tool, setup, or software a person uses as their primary everyday option rather than as an experiment or side device. In tech culture people often talk about their daily driver phones, laptops, editors, or operating systems with surprising intensity.
In plain English: The main device or tool someone uses every day.
Example: "Linux on the old ThinkPad remained his daily driver long after the shiny new company laptop arrived."