Tweaking refers to making small adjustments to improve something, such as tweaking software, settings, or a process for better performance. It can also describe a quick, sharp physical sensation, like a sudden pull or pinch. In everyday use, the word often implies subtle refinement or a minor change that leads to noticeable improvement.
What is Tweaking can also take on a very different meaning in slang, where it describes erratic, agitated, or overly intense behavior.